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Waring's problem

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1966: 1124: 1961:{\displaystyle g(k)={\begin{cases}2^{k}+\lfloor (3/2)^{k}\rfloor -2&{\text{if}}\quad 2^{k}\{(3/2)^{k}\}+\lfloor (3/2)^{k}\rfloor \leq 2^{k},\\2^{k}+\lfloor (3/2)^{k}\rfloor +\lfloor (4/3)^{k}\rfloor -2&{\text{if}}\quad 2^{k}\{(3/2)^{k}\}+\lfloor (3/2)^{k}\rfloor >2^{k}{\text{ and }}\lfloor (4/3)^{k}\rfloor \lfloor (3/2)^{k}\rfloor +\lfloor (4/3)^{k}\rfloor +\lfloor (3/2)^{k}\rfloor =2^{k},\\2^{k}+\lfloor (3/2)^{k}\rfloor +\lfloor (4/3)^{k}\rfloor -3&{\text{if}}\quad 2^{k}\{(3/2)^{k}\}+\lfloor (3/2)^{k}\rfloor >2^{k}{\text{ and }}\lfloor (4/3)^{k}\rfloor \lfloor (3/2)^{k}\rfloor +\lfloor (4/3)^{k}\rfloor +\lfloor (3/2)^{k}\rfloor >2^{k}.\end{cases}}} 104:
in 1770, the same year Waring made his conjecture. Waring sought to generalize this problem by trying to represent all positive integers as the sum of cubes, integers to the fourth power, and so forth, to show that any positive integer may be represented as the sum of other integers raised to a
3690:
Balasubramanian, Ramachandran; Deshouillers, Jean-Marc; Dress, François (1986). "Problème de Waring pour les bicarrés. II. Résultats auxiliaires pour le théorème asymptotique" [Waring's problem for biquadrates. II. Auxiliary results for the asymptotic theorem].
2436:
in 1939, by demonstrating that any sufficiently large number congruent to 1 through 14 mod 16 could be written as a sum of 14 fourth powers (Vaughan in 1986 and 1989 reduced the 14 biquadrates successively to 13 and 12). The exact value of
3662:
Balasubramanian, Ramachandran; Deshouillers, Jean-Marc; Dress, François (1986). "Problème de Waring pour les bicarrés. I. Schéma de la solution" [Waring's problem for biquadrates. I. Sketch of the solution].
2806:
and 10 required at most 16, and Kawada, Wooley and Deshouillers extended Davenport's 1939 result to show that every number above 10 required at most 16). Numbers of the form 31·16 always require 16 fourth powers.
2092: 3046: 783: 2251: 3183: 3273: 1092: 3547: 910: 3472: 2939: 2170: 647: 2764:
is due to Linnik in 1943. (All nonnegative integers require at most 9 cubes, and the largest integers requiring 9, 8, 7, 6 and 5 cubes are conjectured to be 239, 454, 8042,
348: 2872: 313: 278: 3097: 970: 614: 575: 532: 489: 389: 243: 997: 937: 837: 810: 673: 3069:
form of the Hardy–Ramanujan–Littlewood–Vinogradov method to estimating trigonometric sums, in which the summation is taken over numbers with small prime divisors,
2303: 1026: 443: 168: 4197:(2002). "Waring's Problem: A Survey". In Bennet, Michael A.; Berndt, Bruce C.; Boston, Nigel; Diamond, Harold G.; Hildebrand, Adolf J.; Philipp, Walter (eds.). 2271: 2136: 2116: 1989: 857: 701: 208: 188: 139: 105:
specific exponent, and that there was always a maximum number of integers raised to a certain exponent required to represent all positive integers in this way.
4126: 4620: 2388:(1) = 1. Since squares are congruent to 0, 1, or 4 (mod 8), no integer congruent to 7 (mod 8) can be represented as a sum of three squares, implying that 2316: 4480: 4239: 4206: 60:. For example, every natural number is the sum of at most 4 squares, 9 cubes, or 19 fourth powers. Waring's problem was proposed in 1770 by 1994: 245:. Some simple computations show that 7 requires 4 squares, 23 requires 9 cubes, and 79 requires 19 fourth powers; these examples show that 392: 356:
of 1770 states that every natural number is the sum of at most four squares. Since three squares are not enough, this theorem establishes
93: 4256: 2950: 1107: 617: 4539:, Hilbert's proof of Waring's conjecture and the Hardy–Littlewood proof of the asymptotic formula for the number of ways to represent 3567: 73: 4625: 4569: 4520: 4334: 92:
greater than or equal to zero. This question later became known as Bachet's conjecture, after the 1621 translation of Diophantus by
353: 101: 89: 210:
th powers of naturals needed to represent all positive integers. Every positive integer is the sum of one first power, itself, so
3399:
Remember we restrict ourselves to natural numbers. With general integers, it is not hard to write 23 as the sum of 4 cubes, e.g.
2799:
is the largest number to require 17 fourth powers (Deshouillers, Hennecart and Landreau showed in 2000 that every number between
706: 2309:
1, 4, 9, 19, 37, 73, 143, 279, 548, 1079, 2132, 4223, 8384, 16673, 33203, 66190, 132055, 263619, 526502, 1051899, ... (sequence
4610: 3786: 3287: 4615: 4361: 3070: 2175: 412:
Over the years various bounds were established, using increasingly sophisticated and complex proof techniques. For example,
4593: 4508: 3105: 535: 3301: 3201: 1031: 4588: 4393: 2876: 4110:
U. V. Linnik. "On the representation of large numbers as sums of seven cubes". Mat. Sb. N.S. 12(54), 218–224 (1943).
4326: 3477: 3328: 4367:
G. I. Arkhipov, A. A. Karatsuba, V. N. Chubarikov, "Theory of multiple trigonometric sums". Moscow: Nauka, (1987).
3310:, an algorithmic problem that can be used to find the shortest representation of a given number as a sum of powers 862: 3402: 4536: 3586:"Beweis des Satzes, daß sich eine jede ganze Zahl als Summe von höchstens neun positiven Kuben darstellen läßt" 3353:"Beweis für die Darstellbarkeit der ganzen Zahlen durch eine feste Anzahl n-ter Potenzen (Waringsches Problem)" 3313: 4078:
Deshouillers, Jean-Marc; Hennecart, François; Landreau, Bernard; I. Gusti Putu Purnaba, Appendix by (2000).
2885: 2822:
is the last known number that requires 9 fifth powers (Integer sequence S001057, Tony D. Noe, Jul 04 2017),
2341: 450: 3768: 3559: 1103: 539: 2757:, and the authors give reasonable arguments there that this may be the largest possible. The upper bound 4427: 3962: 3357: 2141: 97: 626: 4496: 4295: 4155:
Deshouillers, Jean-Marc; Kawada, Koichi; Wooley, Trevor D. (2005). "On Sums of Sixteen Biquadrates".
3971: 3876: 4583: 3624: 3585: 1148: 3318: 3866:
Kubina, Jeffrey M.; Wunderlich, Marvin C. (1990). "Extending Waring's conjecture to 471,600,000".
4468: 4447: 4364:, "Trigonometric sums in number theory and analysis". Berlin–New-York: Walter de Gruyter, (2004). 3987: 3892: 3803: 3747: 3644: 3605: 3382: 3307: 2373: 318: 283: 248: 3076: 2376:
integer (i.e. every integer greater than some constant) can be represented as a sum of at most
4565: 4516: 4476: 4330: 4235: 4202: 4172: 4048: 3939: 496: 942: 584: 545: 502: 4526: 4439: 4340: 4303: 4164: 4135: 4091: 4040: 4010: 3979: 3957: 3931: 3884: 3840: 3795: 3731: 3636: 3597: 3581: 3366: 2708:(3) is at least 4 (since cubes are congruent to 0, 1 or −1 mod 9); for numbers less than 1.3 2426: 1111: 492: 459: 413: 406: 359: 213: 46: 4216: 4121: 3904: 3852: 3815: 3743: 3704: 3676: 3378: 975: 915: 815: 788: 652: 4553: 4530: 4512: 4344: 4212: 3900: 3848: 3811: 3739: 3700: 3672: 3374: 2279: 1002: 680: 419: 144: 4418:
I. M. Vinogradov, A. A. Karatsuba, "The method of trigonometric sums in number theory",
4299: 3975: 3880: 2256: 2121: 2101: 1974: 1099: 842: 686: 193: 173: 124: 39: 3829:
Mahler, Kurt (1957). "On the fractional parts of the powers of a rational number II".
4604: 4557: 4383: 4370: 4194: 3781: 3751: 3648: 3609: 3386: 3348: 2865: 2861: 1115: 676: 69: 61: 31: 4307: 453:
showed that all sufficiently large numbers are the sum of at most 19 fourth powers.
1095: 578: 4096: 4079: 4422:, 168, 3–30 (1986); translation from Trudy Mat. Inst. Steklova, 168, 4–30 (1984). 3922:: IV. The singular series in Waring's Problem and the value of the number G(k)". 3868: 3831: 2337: 2095: 446: 401: 4014: 4234:. Translated by Roth, K.F.; Davenport, Anne. Mineola, NY: Dover Publications. 3844: 396: 85: 17: 4373:, "An elementary solution of the problem of Waring by Schnirelman's method". 4176: 4052: 3943: 3278:
Vaughan and Wooley's survey article from 2002 was comprehensive at the time.
4325:. Cambridge Tracts in Mathematics. Vol. 125 (2nd ed.). Cambridge: 2674:
In the absence of congruence restrictions, a density argument suggests that
4572:). Has a proof of the Lagrange theorem, accessible to high-school students. 4120:
Deshouillers, Jean-Marc; Hennecart, François; Landreau, Bernard (2000).
350:. Waring conjectured that these lower bounds were in fact exact values. 4451: 4044: 3991: 3935: 3896: 3807: 3735: 3640: 3601: 3370: 4464:), a simplified version of Hilbert's proof and a wealth of references. 4168: 3331:, discusses whether every integer is the sum of four cubes of integers 4140: 4031:
Vaughan, R. C. (1989). "A new iterative method in Waring's problem".
3063: 2087:{\displaystyle 2^{k}\{(3/2)^{k}\}+\lfloor (3/2)^{k}\rfloor >2^{k}} 88:
had asked whether every positive integer could be represented as the
4443: 4005:
Vaughan, R. C. (1986). "On Waring's Problem for Smaller Exponents".
3983: 3888: 3799: 3352: 3764: 3041:{\displaystyle G(k)\leq k(2\log k+2\log \log k+C\log \log \log k)} 2722:
is the last to require 6 cubes, and the number of numbers between
4396:, "The method of trigonometrical sums in the theory of numbers". 3304:, the problem of representing numbers as sums of powers of primes 64:, after whom it is named. Its affirmative answer, known as the 4122:"Waring's Problem for sixteen biquadrates – numerical results" 4201:. Vol. III. Natick, MA: A. K. Peters. pp. 301–340. 2741:; the largest number now known not to be a sum of 4 cubes is 4232:
The Method of Trigonometrical Sums in the Theory of Numbers
2311: 2172:. Thus it is conjectured that this never happens, that is, 1954: 778:{\displaystyle c=2^{k}\lfloor (3/2)^{k}\rfloor -1<3^{k}} 3918:
Hardy, G. H.; Littlewood, J. E. (1922). "Some problems of
4026: 4024: 3188:
Further refinements were obtained by Vaughan in 1989.
2246:{\displaystyle g(k)=2^{k}+\lfloor (3/2)^{k}\rfloor -2} 2098:
proved that there can only be a finite number of such
3480: 3405: 3204: 3108: 3079: 2953: 2888: 2282: 2259: 2178: 2144: 2124: 2118:, and Kubina and Wunderlich have shown that any such 2104: 1997: 1977: 1127: 1034: 1005: 978: 945: 918: 865: 845: 818: 791: 709: 689: 655: 629: 587: 548: 505: 462: 422: 362: 321: 286: 251: 216: 196: 176: 147: 127: 52:
such that every natural number is the sum of at most
3178:{\displaystyle G(k)\leq k(2\log k+2\log \log k+12).} 391:. Lagrange's four-square theorem was conjectured in 3794:(1). The Johns Hopkins University Press: 137–143. 3784:(1944). "An unsolved case of the Waring problem". 3693:Comptes Rendus de l'Académie des Sciences, Série I 3665:Comptes Rendus de l'Académie des Sciences, Série I 3541: 3466: 3290:, that every positive integer is a sum of at most 3267: 3177: 3091: 3040: 2933: 2297: 2265: 2245: 2164: 2130: 2110: 2086: 1983: 1960: 1086: 1020: 991: 964: 931: 904: 851: 831: 804: 777: 695: 667: 641: 608: 569: 526: 483: 437: 383: 342: 307: 272: 237: 202: 182: 162: 133: 4188: 4186: 3960:(1939). "On Waring's Problem for Fourth Powers". 3268:{\displaystyle G(k)\leq k(\log k+\log \log k+C).} 1087:{\displaystyle 2^{k}+\lfloor (3/2)^{k}\rfloor -2} 409:claimed to have a proof, but did not publish it. 4386:, "A new iterative method in Waring's problem". 2734:at sufficient speed to have people believe that 80:Relationship with Lagrange's four-square theorem 3191:Wooley then established that for some constant 859:; the most economical representation requires 4007:Proceedings of the London Mathematical Society 3321:, discusses what numbers are the sum of three 2368:) is defined to be the least positive integer 4157:Mémoires de la Société Mathématique de France 3542:{\displaystyle 29^{3}+17^{3}+8^{3}+(-31)^{3}} 8: 4487:Has an elementary proof of the existence of 2730:requiring 5 cubes drops off with increasing 2234: 2207: 2068: 2041: 2035: 2008: 1932: 1905: 1899: 1872: 1866: 1839: 1836: 1809: 1788: 1761: 1755: 1728: 1701: 1674: 1668: 1641: 1605: 1578: 1572: 1545: 1539: 1512: 1509: 1482: 1461: 1434: 1428: 1401: 1374: 1347: 1341: 1314: 1278: 1251: 1245: 1218: 1191: 1164: 1075: 1048: 893: 866: 753: 726: 662: 656: 636: 630: 4505:Additive Number Theory: The Classical Bases 4230:Vinogradov, Ivan Matveevich (1 Sep 2004) . 3718:Pillai, S. S. (1940). "On Waring's problem 905:{\displaystyle \lfloor (3/2)^{k}\rfloor -1} 4278:Karatsuba, A. A. (1985). "On the function 4127:Journal de théorie des nombres de Bordeaux 3467:{\displaystyle 2^{3}+2^{3}+2^{3}+(-1)^{3}} 2879:published numerous refinements leading to 76:, 11P05, "Waring's problem and variants". 4456:Survey, contains the precise formula for 4403:I. M. Vinogradov, "On an upper bound for 4139: 4095: 4065: 3533: 3511: 3498: 3485: 3479: 3458: 3436: 3423: 3410: 3404: 3203: 3107: 3078: 2952: 2887: 2281: 2258: 2228: 2216: 2198: 2177: 2158: 2154: 2143: 2123: 2103: 2078: 2062: 2050: 2029: 2017: 2002: 1996: 1976: 1942: 1926: 1914: 1893: 1881: 1860: 1848: 1830: 1818: 1804: 1798: 1782: 1770: 1749: 1737: 1722: 1712: 1695: 1683: 1662: 1650: 1632: 1615: 1599: 1587: 1566: 1554: 1533: 1521: 1503: 1491: 1477: 1471: 1455: 1443: 1422: 1410: 1395: 1385: 1368: 1356: 1335: 1323: 1305: 1288: 1272: 1260: 1239: 1227: 1212: 1202: 1185: 1173: 1155: 1143: 1126: 1069: 1057: 1039: 1033: 1004: 983: 977: 950: 944: 923: 917: 887: 875: 864: 844: 823: 817: 796: 790: 769: 747: 735: 720: 708: 688: 654: 628: 586: 547: 504: 461: 421: 361: 320: 285: 250: 215: 195: 175: 146: 126: 2464: 3340: 4535:Has proofs of Lagrange's theorem, the 3566:. Vol. II: Diophantine Analysis. 2934:{\displaystyle G(k)\leq k(3\log k+11)} 2836:10 that requires 10 fifth powers, and 84:Long before Waring posed his problem, 72:in 1909. Waring's problem has its own 3625:"Bemerkungen zum Waringschen Problem" 3073:obtained in 1985 a new estimate, for 491:was established from 1909 to 1912 by 27:Mathematical problem in number theory 7: 56:natural numbers raised to the power 2853:The upper bounds on the right with 79: 4621:Unsolved problems in number theory 4360:G. I. Arkhipov, V. N. Chubarikov, 2380:positive integers to the power of 2165:{\displaystyle k>471\,600\,000} 74:Mathematics Subject Classification 25: 2873:Hardy–Ramanujan–Littlewood method 642:{\displaystyle \lfloor x\rfloor } 94:Claude Gaspard Bachet de Méziriac 4257:"On an upper bound for $ G(n)$ " 4199:Number Theory for the Millennium 3568:Carnegie Institute of Washington 3564:History of the Theory of Numbers 2846:is the last number less than 1.3 2832:is the last number less than 1.3 1118:and many others has proved that 4308:10.1070/IM1986v027n02ABEH001176 3787:American Journal of Mathematics 3288:Fermat polygonal number theorem 1717: 1390: 1207: 1102:, in about 1772. Later work by 4413:Izv. Akad. Nauk SSSR Ser. Mat. 4261:Izv. Akad. Nauk SSSR Ser. Mat. 3530: 3520: 3455: 3445: 3259: 3223: 3214: 3208: 3169: 3127: 3118: 3112: 3071:Anatolii Alexeevitch Karatsuba 3035: 2972: 2963: 2957: 2928: 2907: 2898: 2892: 2647:is a prime greater than 2 and 2619:is a prime greater than 2 and 2582:) is greater than or equal to 2292: 2286: 2225: 2210: 2188: 2182: 2059: 2044: 2026: 2011: 1923: 1908: 1890: 1875: 1857: 1842: 1827: 1812: 1779: 1764: 1746: 1731: 1692: 1677: 1659: 1644: 1596: 1581: 1563: 1548: 1530: 1515: 1500: 1485: 1452: 1437: 1419: 1404: 1365: 1350: 1332: 1317: 1269: 1254: 1236: 1221: 1182: 1167: 1137: 1131: 1066: 1051: 1015: 1009: 884: 869: 744: 729: 597: 591: 558: 552: 515: 509: 472: 466: 432: 426: 372: 366: 354:Lagrange's four-square theorem 331: 325: 296: 290: 261: 255: 226: 220: 157: 151: 1: 4509:Graduate Texts in Mathematics 4503:Nathanson, Melvyn B. (1996). 4473:Three Pearls of Number Theory 4432:American Mathematical Monthly 4288:Izv. Akad. Nauk SSSR Ser. Mat 4097:10.1090/S0025-5718-99-01116-3 4562:The Enjoyment of Mathematics 3051:for an unspecified constant 4589:Encyclopedia of Mathematics 4323:The Hardy–Littlewood method 2445:) is unknown for any other 2253:for every positive integer 343:{\displaystyle g(4)\geq 19} 90:sum of four perfect squares 4642: 4398:Trav. Inst. Math. Stekloff 4327:Cambridge University Press 4255:Vinogradov, I. M. (1959). 4084:Mathematics of Computation 3329:Sums of four cubes problem 2449:, but there exist bounds. 683:of a positive real number 308:{\displaystyle g(3)\geq 9} 273:{\displaystyle g(2)\geq 4} 170:denote the minimum number 4420:Proc. Steklov Inst. Math. 3924:Mathematische Zeitschrift 3845:10.1112/s0025579300001170 3092:{\displaystyle k\geq 400} 2944:in 1947 and, ultimately, 839:can be used to represent 4626:Squares in number theory 4537:polygonal number theorem 4286:) in Waring's problem". 4015:10.1112/plms/s3-52.3.445 3623:Kempner, Aubrey (1912). 3562:(1920). "Chapter VIII". 3323:not necessarily positive 2276:The first few values of 1028:is at least as large as 675:respectively denote the 4426:Ellison, W. J. (1971). 4321:Vaughan, R. C. (1997). 3560:Dickson, Leonard Eugene 3302:Waring–Goldbach problem 3055:and sufficiently large 2344:, the related quantity 965:{\displaystyle 2^{k}-1} 609:{\displaystyle g(6)=73} 570:{\displaystyle g(5)=37} 527:{\displaystyle g(4)=19} 96:, and it was solved by 4611:Additive number theory 4475:. Mineola, NY: Dover. 4009:. s3-52 (3): 445–463. 3724:Proc. Indian Acad. Sci 3543: 3468: 3269: 3179: 3093: 3042: 2935: 2299: 2267: 2247: 2166: 2132: 2112: 2088: 1985: 1962: 1088: 1022: 993: 966: 933: 906: 853: 833: 806: 779: 697: 669: 643: 610: 571: 528: 485: 484:{\displaystyle g(3)=9} 439: 385: 384:{\displaystyle g(2)=4} 344: 309: 274: 239: 238:{\displaystyle g(1)=1} 204: 184: 164: 135: 66:Hilbert–Waring theorem 4616:Mathematical problems 4415:(23), 637–642 (1959). 4400:(23), 109 pp. (1947). 4380:(54), 225–230 (1943). 3963:Annals of Mathematics 3722:(6) = 73". 3629:Mathematische Annalen 3590:Mathematische Annalen 3544: 3469: 3358:Mathematische Annalen 3314:Pollock's conjectures 3270: 3180: 3094: 3043: 2936: 2877:I. M. Vinogradov 2850:10 that requires 11. 2300: 2268: 2248: 2167: 2133: 2113: 2089: 1986: 1963: 1089: 1023: 994: 992:{\displaystyle 1^{k}} 967: 934: 932:{\displaystyle 2^{k}} 907: 854: 834: 832:{\displaystyle 1^{k}} 807: 805:{\displaystyle 2^{k}} 780: 698: 670: 668:{\displaystyle \{x\}} 644: 611: 572: 529: 486: 440: 386: 345: 310: 275: 240: 205: 185: 165: 136: 98:Joseph-Louis Lagrange 4497:Schnirelmann density 3771:(1), 203–204 (1862). 3478: 3403: 3202: 3106: 3077: 2951: 2886: 2651:= p(p − 1)/2; 2298:{\displaystyle g(k)} 2280: 2257: 2176: 2142: 2122: 2102: 1995: 1975: 1125: 1094:. This was noted by 1032: 1021:{\displaystyle g(k)} 1003: 976: 943: 916: 863: 843: 816: 789: 707: 687: 653: 627: 585: 546: 503: 460: 438:{\displaystyle g(4)} 420: 360: 319: 284: 249: 214: 194: 174: 163:{\displaystyle g(k)} 145: 125: 4390:(162), 1–71 (1989). 4300:1986IzMat..27..239K 3976:1939AnMat..40..731D 3881:1990MaCom..55..815K 3319:Sums of three cubes 2871:Using his improved 2352:) was studied with 1991:is known for which 703:. Given the number 395:'s 1621 edition of 102:four-square theorem 4428:"Waring's problem" 4045:10.1007/BF02392834 3936:10.1007/BF01482074 3920:Partitio Numerorum 3736:10.1007/BF03170721 3641:10.1007/BF01456723 3602:10.1007/BF01450913 3539: 3464: 3371:10.1007/bf01450405 3308:Subset sum problem 3265: 3175: 3089: 3038: 2931: 2418:, this shows that 2374:sufficiently large 2295: 2263: 2243: 2162: 2128: 2108: 2084: 1981: 1958: 1953: 1084: 1018: 999:. It follows that 989: 962: 929: 902: 849: 829: 802: 775: 693: 665: 639: 606: 567: 540:J.-M. Deshouillers 536:R. Balasubramanian 524: 481: 435: 381: 340: 305: 270: 235: 200: 180: 160: 131: 68:, was provided by 45:has an associated 38:asks whether each 4511:. Vol. 164. 4482:978-0-486-40026-6 4375:Mat. Sb., N. Ser. 4241:978-0-486-43878-8 4208:978-1-56881-152-9 4169:10.24033/msmf.413 3582:Wieferich, Arthur 2790:, respectively.) 2693:Upper bounds for 2670: 2669: 2662:for all integers 2572: 2571: 2568:25 ≤ G(20) ≤ 142 2563:20 ≤ G(19) ≤ 134 2558:27 ≤ G(18) ≤ 125 2553:18 ≤ G(17) ≤ 117 2548:64 ≤ G(16) ≤ 109 2543:16 ≤ G(15) ≤ 100 2453:Lower bounds for 2336:From the work of 2266:{\displaystyle k} 2131:{\displaystyle k} 2111:{\displaystyle k} 1984:{\displaystyle k} 1807: 1715: 1480: 1388: 1205: 852:{\displaystyle c} 696:{\displaystyle x} 203:{\displaystyle k} 183:{\displaystyle s} 134:{\displaystyle k} 16:(Redirected from 4633: 4597: 4584:"Waring problem" 4534: 4486: 4469:Khinchin, A. Ya. 4455: 4394:I. M. Vinogradov 4388:Acta Mathematica 4349: 4348: 4318: 4312: 4311: 4275: 4269: 4268: 4252: 4246: 4245: 4227: 4221: 4220: 4193:Vaughan, R. C.; 4190: 4181: 4180: 4152: 4146: 4145: 4143: 4141:10.5802/jtnb.287 4117: 4111: 4108: 4102: 4101: 4099: 4090:(229): 421–439. 4075: 4069: 4063: 4057: 4056: 4033:Acta Mathematica 4028: 4019: 4018: 4002: 3996: 3995: 3954: 3948: 3947: 3915: 3909: 3908: 3875:(192): 815–820. 3863: 3857: 3856: 3826: 3820: 3819: 3778: 3772: 3769:"Opera posthuma" 3762: 3756: 3755: 3715: 3709: 3708: 3687: 3681: 3680: 3659: 3653: 3652: 3620: 3614: 3613: 3578: 3572: 3571: 3556: 3550: 3548: 3546: 3545: 3540: 3538: 3537: 3516: 3515: 3503: 3502: 3490: 3489: 3473: 3471: 3470: 3465: 3463: 3462: 3441: 3440: 3428: 3427: 3415: 3414: 3397: 3391: 3390: 3345: 3274: 3272: 3271: 3266: 3184: 3182: 3181: 3176: 3098: 3096: 3095: 3090: 3047: 3045: 3044: 3039: 2940: 2938: 2937: 2932: 2859: 2849: 2845: 2844: 2841: 2835: 2831: 2830: 2827: 2821: 2820: 2817: 2814: 2805: 2804: 2798: 2797: 2789: 2788: 2785: 2782: 2779: 2773: 2772: 2769: 2763: 2756: 2755: 2752: 2749: 2746: 2740: 2721: 2720: 2717: 2711: 2688: 2666:greater than 1. 2587: 2586: 2538:15 ≤ G(14) ≤ 92 2533:14 ≤ G(13) ≤ 84 2528:16 ≤ G(12) ≤ 76 2523:12 ≤ G(11) ≤ 67 2518:12 ≤ G(10) ≤ 59 2465: 2435: 2424: 2413: 2394: 2372:such that every 2314: 2304: 2302: 2301: 2296: 2272: 2270: 2269: 2264: 2252: 2250: 2249: 2244: 2233: 2232: 2220: 2203: 2202: 2171: 2169: 2168: 2163: 2137: 2135: 2134: 2129: 2117: 2115: 2114: 2109: 2093: 2091: 2090: 2085: 2083: 2082: 2067: 2066: 2054: 2034: 2033: 2021: 2007: 2006: 1990: 1988: 1987: 1982: 1967: 1965: 1964: 1959: 1957: 1956: 1947: 1946: 1931: 1930: 1918: 1898: 1897: 1885: 1865: 1864: 1852: 1835: 1834: 1822: 1808: 1805: 1803: 1802: 1787: 1786: 1774: 1754: 1753: 1741: 1727: 1726: 1716: 1713: 1700: 1699: 1687: 1667: 1666: 1654: 1637: 1636: 1620: 1619: 1604: 1603: 1591: 1571: 1570: 1558: 1538: 1537: 1525: 1508: 1507: 1495: 1481: 1478: 1476: 1475: 1460: 1459: 1447: 1427: 1426: 1414: 1400: 1399: 1389: 1386: 1373: 1372: 1360: 1340: 1339: 1327: 1310: 1309: 1293: 1292: 1277: 1276: 1264: 1244: 1243: 1231: 1217: 1216: 1206: 1203: 1190: 1189: 1177: 1160: 1159: 1096:J. A. Euler 1093: 1091: 1090: 1085: 1074: 1073: 1061: 1044: 1043: 1027: 1025: 1024: 1019: 998: 996: 995: 990: 988: 987: 971: 969: 968: 963: 955: 954: 938: 936: 935: 930: 928: 927: 911: 909: 908: 903: 892: 891: 879: 858: 856: 855: 850: 838: 836: 835: 830: 828: 827: 811: 809: 808: 803: 801: 800: 784: 782: 781: 776: 774: 773: 752: 751: 739: 725: 724: 702: 700: 699: 694: 674: 672: 671: 666: 648: 646: 645: 640: 615: 613: 612: 607: 576: 574: 573: 568: 538:, F. Dress, and 533: 531: 530: 525: 490: 488: 487: 482: 444: 442: 441: 436: 390: 388: 387: 382: 349: 347: 346: 341: 314: 312: 311: 306: 279: 277: 276: 271: 244: 242: 241: 236: 209: 207: 206: 201: 189: 187: 186: 181: 169: 167: 166: 161: 140: 138: 137: 132: 47:positive integer 36:Waring's problem 21: 4641: 4640: 4636: 4635: 4634: 4632: 4631: 4630: 4601: 4600: 4582: 4579: 4554:Hans Rademacher 4523: 4513:Springer-Verlag 4502: 4483: 4467: 4444:10.2307/2317482 4425: 4362:A. A. Karatsuba 4357: 4352: 4337: 4320: 4319: 4315: 4277: 4276: 4272: 4254: 4253: 4249: 4242: 4229: 4228: 4224: 4209: 4192: 4191: 4184: 4154: 4153: 4149: 4119: 4118: 4114: 4109: 4105: 4080:"7373170279850" 4077: 4076: 4072: 4066:Nathanson (1996 4064: 4060: 4030: 4029: 4022: 4004: 4003: 3999: 3984:10.2307/1968889 3956: 3955: 3951: 3917: 3916: 3912: 3889:10.2307/2008448 3865: 3864: 3860: 3828: 3827: 3823: 3800:10.2307/2371901 3780: 3779: 3775: 3763: 3759: 3717: 3716: 3712: 3689: 3688: 3684: 3661: 3660: 3656: 3622: 3621: 3617: 3580: 3579: 3575: 3558: 3557: 3553: 3529: 3507: 3494: 3481: 3476: 3475: 3454: 3432: 3419: 3406: 3401: 3400: 3398: 3394: 3347: 3346: 3342: 3338: 3284: 3200: 3199: 3104: 3103: 3075: 3074: 2949: 2948: 2884: 2883: 2858:= 5, 6, ..., 20 2854: 2847: 2842: 2839: 2837: 2833: 2828: 2825: 2823: 2818: 2815: 2812: 2810: 2802: 2800: 2795: 2793: 2786: 2783: 2780: 2777: 2775: 2770: 2767: 2765: 2758: 2753: 2750: 2747: 2744: 2742: 2735: 2718: 2715: 2713: 2709: 2703: 2683: 2682:) should equal 2513:13 ≤ G(9) ≤ 50 2508:32 ≤ G(8) ≤ 42 2488:16 = G(4) = 16 2463: 2430: 2419: 2396: 2389: 2334: 2310: 2278: 2277: 2255: 2254: 2224: 2194: 2174: 2173: 2140: 2139: 2120: 2119: 2100: 2099: 2074: 2058: 2025: 1998: 1993: 1992: 1973: 1972: 1952: 1951: 1938: 1922: 1889: 1856: 1826: 1806: and  1794: 1778: 1745: 1718: 1710: 1691: 1658: 1628: 1625: 1624: 1611: 1595: 1562: 1529: 1499: 1479: and  1467: 1451: 1418: 1391: 1383: 1364: 1331: 1301: 1298: 1297: 1284: 1268: 1235: 1208: 1200: 1181: 1151: 1144: 1123: 1122: 1065: 1035: 1030: 1029: 1001: 1000: 979: 974: 973: 946: 941: 940: 919: 914: 913: 883: 861: 860: 841: 840: 819: 814: 813: 792: 787: 786: 765: 743: 716: 705: 704: 685: 684: 681:fractional part 651: 650: 625: 624: 583: 582: 544: 543: 501: 500: 458: 457: 445:is at most 53. 418: 417: 358: 357: 317: 316: 282: 281: 247: 246: 212: 211: 192: 191: 172: 171: 143: 142: 123: 122: 119: 82: 28: 23: 22: 15: 12: 11: 5: 4639: 4637: 4629: 4628: 4623: 4618: 4613: 4603: 4602: 4599: 4598: 4578: 4577:External links 4575: 4574: 4573: 4551: 4543:as the sum of 4521: 4500: 4481: 4465: 4423: 4416: 4401: 4391: 4381: 4368: 4365: 4356: 4353: 4351: 4350: 4335: 4313: 4294:(4): 935–947. 4270: 4263:(in Russian). 4247: 4240: 4222: 4207: 4195:Wooley, Trevor 4182: 4147: 4134:(2): 411–422. 4112: 4103: 4070: 4068:, p. 71). 4058: 4020: 3997: 3970:(4): 731–747. 3949: 3930:(1): 161–188. 3910: 3858: 3839:(2): 122–124. 3821: 3782:Niven, Ivan M. 3773: 3757: 3710: 3699:(5): 161–163. 3682: 3654: 3635:(3): 387–399. 3615: 3573: 3551: 3536: 3532: 3528: 3525: 3522: 3519: 3514: 3510: 3506: 3501: 3497: 3493: 3488: 3484: 3461: 3457: 3453: 3450: 3447: 3444: 3439: 3435: 3431: 3426: 3422: 3418: 3413: 3409: 3392: 3365:(3): 281–300. 3349:Hilbert, David 3339: 3337: 3334: 3333: 3332: 3326: 3316: 3311: 3305: 3299: 3298:-gonal numbers 3283: 3280: 3276: 3275: 3264: 3261: 3258: 3255: 3252: 3249: 3246: 3243: 3240: 3237: 3234: 3231: 3228: 3225: 3222: 3219: 3216: 3213: 3210: 3207: 3186: 3185: 3174: 3171: 3168: 3165: 3162: 3159: 3156: 3153: 3150: 3147: 3144: 3141: 3138: 3135: 3132: 3129: 3126: 3123: 3120: 3117: 3114: 3111: 3088: 3085: 3082: 3049: 3048: 3037: 3034: 3031: 3028: 3025: 3022: 3019: 3016: 3013: 3010: 3007: 3004: 3001: 2998: 2995: 2992: 2989: 2986: 2983: 2980: 2977: 2974: 2971: 2968: 2965: 2962: 2959: 2956: 2942: 2941: 2930: 2927: 2924: 2921: 2918: 2915: 2912: 2909: 2906: 2903: 2900: 2897: 2894: 2891: 2702: 2691: 2672: 2671: 2668: 2667: 2660: 2653: 2652: 2641: 2633: 2632: 2613: 2607: 2606: 2601:≥ 2, or 2591: 2570: 2569: 2565: 2564: 2560: 2559: 2555: 2554: 2550: 2549: 2545: 2544: 2540: 2539: 2535: 2534: 2530: 2529: 2525: 2524: 2520: 2519: 2515: 2514: 2510: 2509: 2505: 2504: 2503:8 ≤ G(7) ≤ 33 2500: 2499: 2498:9 ≤ G(6) ≤ 24 2495: 2494: 2493:6 ≤ G(5) ≤ 17 2490: 2489: 2485: 2484: 2480: 2479: 2475: 2474: 2470: 2469: 2462: 2451: 2333: 2322: 2321: 2320: 2294: 2291: 2288: 2285: 2262: 2242: 2239: 2236: 2231: 2227: 2223: 2219: 2215: 2212: 2209: 2206: 2201: 2197: 2193: 2190: 2187: 2184: 2181: 2161: 2157: 2153: 2150: 2147: 2127: 2107: 2081: 2077: 2073: 2070: 2065: 2061: 2057: 2053: 2049: 2046: 2043: 2040: 2037: 2032: 2028: 2024: 2020: 2016: 2013: 2010: 2005: 2001: 1980: 1969: 1968: 1955: 1950: 1945: 1941: 1937: 1934: 1929: 1925: 1921: 1917: 1913: 1910: 1907: 1904: 1901: 1896: 1892: 1888: 1884: 1880: 1877: 1874: 1871: 1868: 1863: 1859: 1855: 1851: 1847: 1844: 1841: 1838: 1833: 1829: 1825: 1821: 1817: 1814: 1811: 1801: 1797: 1793: 1790: 1785: 1781: 1777: 1773: 1769: 1766: 1763: 1760: 1757: 1752: 1748: 1744: 1740: 1736: 1733: 1730: 1725: 1721: 1711: 1709: 1706: 1703: 1698: 1694: 1690: 1686: 1682: 1679: 1676: 1673: 1670: 1665: 1661: 1657: 1653: 1649: 1646: 1643: 1640: 1635: 1631: 1627: 1626: 1623: 1618: 1614: 1610: 1607: 1602: 1598: 1594: 1590: 1586: 1583: 1580: 1577: 1574: 1569: 1565: 1561: 1557: 1553: 1550: 1547: 1544: 1541: 1536: 1532: 1528: 1524: 1520: 1517: 1514: 1511: 1506: 1502: 1498: 1494: 1490: 1487: 1484: 1474: 1470: 1466: 1463: 1458: 1454: 1450: 1446: 1442: 1439: 1436: 1433: 1430: 1425: 1421: 1417: 1413: 1409: 1406: 1403: 1398: 1394: 1384: 1382: 1379: 1376: 1371: 1367: 1363: 1359: 1355: 1352: 1349: 1346: 1343: 1338: 1334: 1330: 1326: 1322: 1319: 1316: 1313: 1308: 1304: 1300: 1299: 1296: 1291: 1287: 1283: 1280: 1275: 1271: 1267: 1263: 1259: 1256: 1253: 1250: 1247: 1242: 1238: 1234: 1230: 1226: 1223: 1220: 1215: 1211: 1201: 1199: 1196: 1193: 1188: 1184: 1180: 1176: 1172: 1169: 1166: 1163: 1158: 1154: 1150: 1149: 1147: 1142: 1139: 1136: 1133: 1130: 1100:Leonhard Euler 1083: 1080: 1077: 1072: 1068: 1064: 1060: 1056: 1053: 1050: 1047: 1042: 1038: 1017: 1014: 1011: 1008: 986: 982: 961: 958: 953: 949: 926: 922: 901: 898: 895: 890: 886: 882: 878: 874: 871: 868: 848: 826: 822: 799: 795: 772: 768: 764: 761: 758: 755: 750: 746: 742: 738: 734: 731: 728: 723: 719: 715: 712: 692: 664: 661: 658: 638: 635: 632: 605: 602: 599: 596: 593: 590: 566: 563: 560: 557: 554: 551: 523: 520: 517: 514: 511: 508: 480: 477: 474: 471: 468: 465: 434: 431: 428: 425: 380: 377: 374: 371: 368: 365: 339: 336: 333: 330: 327: 324: 304: 301: 298: 295: 292: 289: 269: 266: 263: 260: 257: 254: 234: 231: 228: 225: 222: 219: 199: 179: 159: 156: 153: 150: 130: 118: 107: 81: 78: 40:natural number 26: 24: 18:Waring problem 14: 13: 10: 9: 6: 4: 3: 2: 4638: 4627: 4624: 4622: 4619: 4617: 4614: 4612: 4609: 4608: 4606: 4595: 4591: 4590: 4585: 4581: 4580: 4576: 4571: 4570:0-691-02351-4 4567: 4563: 4559: 4558:Otto Toeplitz 4555: 4552: 4549: 4546: 4542: 4538: 4532: 4528: 4524: 4522:0-387-94656-X 4518: 4514: 4510: 4506: 4501: 4498: 4494: 4490: 4484: 4478: 4474: 4470: 4466: 4463: 4459: 4453: 4449: 4445: 4441: 4437: 4433: 4429: 4424: 4421: 4417: 4414: 4410: 4406: 4402: 4399: 4395: 4392: 4389: 4385: 4384:R. C. Vaughan 4382: 4379: 4376: 4372: 4371:Yu. V. Linnik 4369: 4366: 4363: 4359: 4358: 4354: 4346: 4342: 4338: 4336:0-521-57347-5 4332: 4328: 4324: 4317: 4314: 4309: 4305: 4301: 4297: 4293: 4289: 4285: 4281: 4274: 4271: 4267:(5): 637–642. 4266: 4262: 4258: 4251: 4248: 4243: 4237: 4233: 4226: 4223: 4218: 4214: 4210: 4204: 4200: 4196: 4189: 4187: 4183: 4178: 4174: 4170: 4166: 4162: 4158: 4151: 4148: 4142: 4137: 4133: 4129: 4128: 4123: 4116: 4113: 4107: 4104: 4098: 4093: 4089: 4085: 4081: 4074: 4071: 4067: 4062: 4059: 4054: 4050: 4046: 4042: 4038: 4034: 4027: 4025: 4021: 4016: 4012: 4008: 4001: 3998: 3993: 3989: 3985: 3981: 3977: 3973: 3969: 3965: 3964: 3959: 3958:Davenport, H. 3953: 3950: 3945: 3941: 3937: 3933: 3929: 3925: 3921: 3914: 3911: 3906: 3902: 3898: 3894: 3890: 3886: 3882: 3878: 3874: 3871: 3870: 3862: 3859: 3854: 3850: 3846: 3842: 3838: 3834: 3833: 3825: 3822: 3817: 3813: 3809: 3805: 3801: 3797: 3793: 3789: 3788: 3783: 3777: 3774: 3770: 3766: 3761: 3758: 3753: 3749: 3745: 3741: 3737: 3733: 3729: 3725: 3721: 3714: 3711: 3706: 3702: 3698: 3695:(in French). 3694: 3686: 3683: 3678: 3674: 3670: 3667:(in French). 3666: 3658: 3655: 3650: 3646: 3642: 3638: 3634: 3631:(in German). 3630: 3626: 3619: 3616: 3611: 3607: 3603: 3599: 3596:(1): 95–101. 3595: 3592:(in German). 3591: 3587: 3583: 3577: 3574: 3569: 3565: 3561: 3555: 3552: 3534: 3526: 3523: 3517: 3512: 3508: 3504: 3499: 3495: 3491: 3486: 3482: 3459: 3451: 3448: 3442: 3437: 3433: 3429: 3424: 3420: 3416: 3411: 3407: 3396: 3393: 3388: 3384: 3380: 3376: 3372: 3368: 3364: 3361:(in German). 3360: 3359: 3354: 3350: 3344: 3341: 3335: 3330: 3327: 3324: 3320: 3317: 3315: 3312: 3309: 3306: 3303: 3300: 3297: 3293: 3289: 3286: 3285: 3281: 3279: 3262: 3256: 3253: 3250: 3247: 3244: 3241: 3238: 3235: 3232: 3229: 3226: 3220: 3217: 3211: 3205: 3198: 3197: 3196: 3194: 3189: 3172: 3166: 3163: 3160: 3157: 3154: 3151: 3148: 3145: 3142: 3139: 3136: 3133: 3130: 3124: 3121: 3115: 3109: 3102: 3101: 3100: 3086: 3083: 3080: 3072: 3068: 3066: 3062:Applying his 3060: 3058: 3054: 3032: 3029: 3026: 3023: 3020: 3017: 3014: 3011: 3008: 3005: 3002: 2999: 2996: 2993: 2990: 2987: 2984: 2981: 2978: 2975: 2969: 2966: 2960: 2954: 2947: 2946: 2945: 2925: 2922: 2919: 2916: 2913: 2910: 2904: 2901: 2895: 2889: 2882: 2881: 2880: 2878: 2874: 2869: 2867: 2863: 2857: 2851: 2808: 2791: 2761: 2738: 2733: 2729: 2725: 2707: 2700: 2696: 2692: 2690: 2686: 2681: 2677: 2665: 2661: 2658: 2655: 2654: 2650: 2646: 2642: 2640:− 1)/2   2639: 2635: 2634: 2630: 2626: 2622: 2618: 2614: 2612: 2609: 2608: 2604: 2600: 2596: 2592: 2589: 2588: 2585: 2584: 2583: 2581: 2577: 2567: 2566: 2562: 2561: 2557: 2556: 2552: 2551: 2547: 2546: 2542: 2541: 2537: 2536: 2532: 2531: 2527: 2526: 2522: 2521: 2517: 2516: 2512: 2511: 2507: 2506: 2502: 2501: 2497: 2496: 2492: 2491: 2487: 2486: 2483:4 ≤ G(3) ≤ 7 2482: 2481: 2478:4 = G(2) = 4 2477: 2476: 2473:1 = G(1) = 1 2472: 2471: 2467: 2466: 2460: 2456: 2452: 2450: 2448: 2444: 2440: 2433: 2428: 2422: 2417: 2411: 2407: 2403: 2399: 2392: 2387: 2383: 2379: 2375: 2371: 2367: 2363: 2359: 2355: 2351: 2347: 2343: 2339: 2331: 2327: 2323: 2318: 2313: 2308: 2307: 2306: 2289: 2283: 2274: 2260: 2240: 2237: 2229: 2221: 2217: 2213: 2204: 2199: 2195: 2191: 2185: 2179: 2159: 2155: 2151: 2148: 2145: 2138:must satisfy 2125: 2105: 2097: 2079: 2075: 2071: 2063: 2055: 2051: 2047: 2038: 2030: 2022: 2018: 2014: 2003: 1999: 1978: 1948: 1943: 1939: 1935: 1927: 1919: 1915: 1911: 1902: 1894: 1886: 1882: 1878: 1869: 1861: 1853: 1849: 1845: 1831: 1823: 1819: 1815: 1799: 1795: 1791: 1783: 1775: 1771: 1767: 1758: 1750: 1742: 1738: 1734: 1723: 1719: 1707: 1704: 1696: 1688: 1684: 1680: 1671: 1663: 1655: 1651: 1647: 1638: 1633: 1629: 1621: 1616: 1612: 1608: 1600: 1592: 1588: 1584: 1575: 1567: 1559: 1555: 1551: 1542: 1534: 1526: 1522: 1518: 1504: 1496: 1492: 1488: 1472: 1468: 1464: 1456: 1448: 1444: 1440: 1431: 1423: 1415: 1411: 1407: 1396: 1392: 1380: 1377: 1369: 1361: 1357: 1353: 1344: 1336: 1328: 1324: 1320: 1311: 1306: 1302: 1294: 1289: 1285: 1281: 1273: 1265: 1261: 1257: 1248: 1240: 1232: 1228: 1224: 1213: 1209: 1197: 1194: 1186: 1178: 1174: 1170: 1161: 1156: 1152: 1145: 1140: 1134: 1128: 1121: 1120: 1119: 1117: 1113: 1109: 1105: 1101: 1098:, the son of 1097: 1081: 1078: 1070: 1062: 1058: 1054: 1045: 1040: 1036: 1012: 1006: 984: 980: 959: 956: 951: 947: 924: 920: 899: 896: 888: 880: 876: 872: 846: 824: 820: 797: 793: 770: 766: 762: 759: 756: 748: 740: 736: 732: 721: 717: 713: 710: 690: 682: 678: 659: 633: 621: 619: 603: 600: 594: 588: 580: 564: 561: 555: 549: 541: 537: 521: 518: 512: 506: 498: 497:A. J. Kempner 494: 478: 475: 469: 463: 454: 452: 448: 429: 423: 415: 410: 408: 404: 403: 398: 394: 378: 375: 369: 363: 355: 351: 337: 334: 328: 322: 302: 299: 293: 287: 267: 264: 258: 252: 232: 229: 223: 217: 197: 177: 154: 148: 128: 116: 112: 108: 106: 103: 99: 95: 91: 87: 77: 75: 71: 67: 63: 62:Edward Waring 59: 55: 51: 48: 44: 41: 37: 33: 32:number theory 19: 4587: 4561: 4547: 4544: 4540: 4504: 4492: 4488: 4472: 4461: 4457: 4438:(1): 10–36. 4435: 4431: 4419: 4412: 4408: 4404: 4397: 4387: 4377: 4374: 4322: 4316: 4291: 4287: 4283: 4279: 4273: 4264: 4260: 4250: 4231: 4225: 4198: 4160: 4156: 4150: 4131: 4125: 4115: 4106: 4087: 4083: 4073: 4061: 4036: 4032: 4006: 4000: 3967: 3961: 3952: 3927: 3923: 3919: 3913: 3872: 3867: 3861: 3836: 3830: 3824: 3791: 3785: 3776: 3760: 3727: 3723: 3719: 3713: 3696: 3692: 3685: 3671:(4): 85–88. 3668: 3664: 3657: 3632: 3628: 3618: 3593: 3589: 3576: 3563: 3554: 3395: 3362: 3356: 3343: 3322: 3295: 3291: 3277: 3192: 3190: 3187: 3064: 3061: 3056: 3052: 3050: 2943: 2870: 2855: 2852: 2809: 2792: 2759: 2736: 2731: 2727: 2723: 2705: 2704: 2698: 2694: 2684: 2679: 2675: 2673: 2663: 2656: 2648: 2644: 2637: 2631:− 1); 2628: 2624: 2620: 2616: 2610: 2602: 2598: 2594: 2579: 2575: 2573: 2458: 2454: 2446: 2442: 2438: 2431: 2429:showed that 2420: 2415: 2409: 2405: 2401: 2397: 2390: 2385: 2381: 2377: 2369: 2365: 2361: 2357: 2353: 2349: 2345: 2335: 2329: 2325: 2275: 1971:No value of 1970: 622: 579:Chen Jingrun 455: 416:showed that 411: 400: 352: 120: 114: 110: 83: 65: 57: 53: 49: 42: 35: 29: 3869:Math. Comp. 3832:Mathematika 2860:are due to 2574:The number 2384:. Clearly, 2324:The number 616:in 1940 by 577:in 1964 by 534:in 1986 by 402:Arithmetica 109:The number 4605:Categories 4550:th powers. 4531:0859.11002 4355:References 4345:0868.11046 2342:Littlewood 1112:Rubugunday 451:Littlewood 397:Diophantus 121:For every 86:Diophantus 4594:EMS Press 4177:0249-633X 4163:: 1–120. 4053:0001-5962 3944:0025-5874 3752:185097940 3730:: 30–40. 3649:120101223 3610:121386035 3524:− 3449:− 3387:179177986 3248:⁡ 3242:⁡ 3230:⁡ 3218:≤ 3158:⁡ 3152:⁡ 3137:⁡ 3122:≤ 3084:≥ 3059:in 1959. 3030:⁡ 3024:⁡ 3018:⁡ 3003:⁡ 2997:⁡ 2982:⁡ 2967:≤ 2917:⁡ 2902:≤ 2605:= 3 × 2; 2597:= 2 with 2427:Davenport 2238:− 2235:⌋ 2208:⌊ 2069:⌋ 2042:⌊ 1933:⌋ 1906:⌊ 1900:⌋ 1873:⌊ 1867:⌋ 1840:⌊ 1837:⌋ 1810:⌊ 1789:⌋ 1762:⌊ 1705:− 1702:⌋ 1675:⌊ 1669:⌋ 1642:⌊ 1606:⌋ 1579:⌊ 1573:⌋ 1546:⌊ 1540:⌋ 1513:⌊ 1510:⌋ 1483:⌊ 1462:⌋ 1435:⌊ 1378:− 1375:⌋ 1348:⌊ 1342:⌋ 1315:⌊ 1282:≤ 1279:⌋ 1252:⌊ 1195:− 1192:⌋ 1165:⌊ 1079:− 1076:⌋ 1049:⌊ 972:terms of 957:− 912:terms of 897:− 894:⌋ 867:⌊ 757:− 754:⌋ 727:⌊ 637:⌋ 631:⌊ 493:Wieferich 414:Liouville 335:≥ 300:≥ 265:≥ 4564:(1933) ( 4495:) using 4471:(1998). 4039:: 1–71. 3765:L. Euler 3584:(1909). 3351:(1909). 3282:See also 2434:(4) = 16 2414:for all 2395:. Since 677:integral 4596:, 2001 4452:2317482 4296:Bibcode 4217:1956283 3992:1968889 3972:Bibcode 3905:1035936 3897:2008448 3877:Bibcode 3853:0093509 3816:0009386 3808:2371901 3744:0002993 3705:0854724 3677:0853592 3379:1511530 3294:of the 2862:Vaughan 2762:(3) ≤ 7 2739:(3) = 4 2468:Bounds 2423:(2) = 4 2393:(2) ≥ 4 2315:in the 2312:A002804 1104:Dickson 785:, only 100:in his 70:Hilbert 4568:  4529:  4519:  4479:  4450:  4343:  4333:  4238:  4215:  4205:  4175:  4051:  3990:  3942:  3903:  3895:  3851:  3814:  3806:  3750:  3742:  3703:  3675:  3647:  3608:  3385:  3377:  2866:Wooley 2096:Mahler 1108:Pillai 618:Pillai 581:, and 407:Fermat 393:Bachet 315:, and 141:, let 4448:JSTOR 3988:JSTOR 3893:JSTOR 3804:JSTOR 3748:S2CID 3645:S2CID 3606:S2CID 3383:S2CID 3336:Notes 3325:cubes 3067:-adic 2726:and 2 2338:Hardy 2305:are: 1116:Niven 456:That 447:Hardy 4566:ISBN 4556:and 4517:ISBN 4477:ISBN 4411:)". 4331:ISBN 4236:ISBN 4203:ISBN 4173:ISSN 4049:ISSN 3940:ISSN 2864:and 2774:and 2712:10, 2404:) ≤ 2360:). 2340:and 2317:OEIS 2149:> 2072:> 1936:> 1792:> 1465:> 939:and 812:and 763:< 679:and 649:and 623:Let 495:and 449:and 4527:Zbl 4440:doi 4341:Zbl 4304:doi 4165:doi 4136:doi 4092:doi 4041:doi 4037:162 4011:doi 3980:doi 3932:doi 3885:doi 3841:doi 3796:doi 3732:doi 3697:303 3669:303 3637:doi 3598:doi 3474:or 3367:doi 3245:log 3239:log 3227:log 3155:log 3149:log 3134:log 3087:400 3027:log 3021:log 3015:log 3000:log 2994:log 2979:log 2914:log 2843:617 2840:033 2829:724 2826:597 2824:617 2819:422 2816:904 2813:578 2803:793 2796:792 2787:850 2784:279 2781:170 2778:373 2771:740 2768:290 2754:850 2751:279 2748:170 2745:373 2719:740 2716:290 2687:+ 1 2659:+ 1 2643:if 2615:if 2593:if 2160:000 2156:600 2152:471 399:'s 190:of 30:In 4607:: 4592:, 4586:, 4560:, 4525:. 4515:. 4507:. 4446:. 4436:78 4434:. 4430:. 4378:12 4339:. 4329:. 4302:. 4292:27 4290:. 4265:23 4259:. 4213:MR 4211:. 4185:^ 4171:. 4159:. 4132:12 4130:. 4124:. 4088:69 4086:. 4082:. 4047:. 4035:. 4023:^ 3986:. 3978:. 3968:40 3966:. 3938:. 3928:12 3926:. 3901:MR 3899:. 3891:. 3883:. 3873:55 3849:MR 3847:. 3835:. 3812:MR 3810:. 3802:. 3792:66 3790:. 3767:, 3746:. 3740:MR 3738:. 3728:12 3726:. 3701:MR 3673:MR 3643:. 3633:72 3627:. 3604:. 3594:66 3588:. 3527:31 3496:17 3483:29 3381:. 3375:MR 3373:. 3363:67 3355:. 3195:, 3167:12 3099:: 2926:11 2875:, 2868:. 2838:51 2811:68 2801:13 2794:13 2689:. 2623:= 2425:. 2319:). 2273:. 2094:. 1714:if 1387:if 1204:if 1114:, 1110:, 1106:, 620:. 604:73 565:37 542:, 522:19 499:, 405:; 338:19 280:, 34:, 4548:k 4545:s 4541:N 4533:. 4499:. 4493:k 4491:( 4489:G 4485:. 4462:k 4460:( 4458:G 4454:. 4442:: 4409:n 4407:( 4405:G 4347:. 4310:. 4306:: 4298:: 4284:n 4282:( 4280:G 4244:. 4219:. 4179:. 4167:: 4161:1 4144:. 4138:: 4100:. 4094:: 4055:. 4043:: 4017:. 4013:: 3994:. 3982:: 3974:: 3946:. 3934:: 3907:. 3887:: 3879:: 3855:. 3843:: 3837:4 3818:. 3798:: 3754:. 3734:: 3720:g 3707:. 3679:. 3651:. 3639:: 3612:. 3600:: 3570:. 3549:. 3535:3 3531:) 3521:( 3518:+ 3513:3 3509:8 3505:+ 3500:3 3492:+ 3487:3 3460:3 3456:) 3452:1 3446:( 3443:+ 3438:3 3434:2 3430:+ 3425:3 3421:2 3417:+ 3412:3 3408:2 3389:. 3369:: 3296:n 3292:n 3263:. 3260:) 3257:C 3254:+ 3251:k 3236:+ 3233:k 3224:( 3221:k 3215:) 3212:k 3209:( 3206:G 3193:C 3173:. 3170:) 3164:+ 3161:k 3146:2 3143:+ 3140:k 3131:2 3128:( 3125:k 3119:) 3116:k 3113:( 3110:G 3081:k 3065:p 3057:k 3053:C 3036:) 3033:k 3012:C 3009:+ 3006:k 2991:2 2988:+ 2985:k 2976:2 2973:( 2970:k 2964:) 2961:k 2958:( 2955:G 2929:) 2923:+ 2920:k 2911:3 2908:( 2905:k 2899:) 2896:k 2893:( 2890:G 2856:k 2848:× 2834:× 2776:7 2766:1 2760:G 2743:7 2737:G 2732:N 2728:N 2724:N 2714:1 2710:× 2706:G 2701:) 2699:k 2697:( 2695:G 2685:k 2680:k 2678:( 2676:G 2664:k 2657:k 2649:k 2645:p 2638:p 2636:( 2629:p 2627:( 2625:p 2621:k 2617:p 2611:p 2603:k 2599:r 2595:k 2590:2 2580:k 2578:( 2576:G 2461:) 2459:k 2457:( 2455:G 2447:k 2443:k 2441:( 2439:G 2432:G 2421:G 2416:k 2412:) 2410:k 2408:( 2406:g 2402:k 2400:( 2398:G 2391:G 2386:G 2382:k 2378:s 2370:s 2366:k 2364:( 2362:G 2358:k 2356:( 2354:g 2350:k 2348:( 2346:G 2332:) 2330:k 2328:( 2326:G 2293:) 2290:k 2287:( 2284:g 2261:k 2241:2 2230:k 2226:) 2222:2 2218:/ 2214:3 2211:( 2205:+ 2200:k 2196:2 2192:= 2189:) 2186:k 2183:( 2180:g 2146:k 2126:k 2106:k 2080:k 2076:2 2064:k 2060:) 2056:2 2052:/ 2048:3 2045:( 2039:+ 2036:} 2031:k 2027:) 2023:2 2019:/ 2015:3 2012:( 2009:{ 2004:k 2000:2 1979:k 1949:. 1944:k 1940:2 1928:k 1924:) 1920:2 1916:/ 1912:3 1909:( 1903:+ 1895:k 1891:) 1887:3 1883:/ 1879:4 1876:( 1870:+ 1862:k 1858:) 1854:2 1850:/ 1846:3 1843:( 1832:k 1828:) 1824:3 1820:/ 1816:4 1813:( 1800:k 1796:2 1784:k 1780:) 1776:2 1772:/ 1768:3 1765:( 1759:+ 1756:} 1751:k 1747:) 1743:2 1739:/ 1735:3 1732:( 1729:{ 1724:k 1720:2 1708:3 1697:k 1693:) 1689:3 1685:/ 1681:4 1678:( 1672:+ 1664:k 1660:) 1656:2 1652:/ 1648:3 1645:( 1639:+ 1634:k 1630:2 1622:, 1617:k 1613:2 1609:= 1601:k 1597:) 1593:2 1589:/ 1585:3 1582:( 1576:+ 1568:k 1564:) 1560:3 1556:/ 1552:4 1549:( 1543:+ 1535:k 1531:) 1527:2 1523:/ 1519:3 1516:( 1505:k 1501:) 1497:3 1493:/ 1489:4 1486:( 1473:k 1469:2 1457:k 1453:) 1449:2 1445:/ 1441:3 1438:( 1432:+ 1429:} 1424:k 1420:) 1416:2 1412:/ 1408:3 1405:( 1402:{ 1397:k 1393:2 1381:2 1370:k 1366:) 1362:3 1358:/ 1354:4 1351:( 1345:+ 1337:k 1333:) 1329:2 1325:/ 1321:3 1318:( 1312:+ 1307:k 1303:2 1295:, 1290:k 1286:2 1274:k 1270:) 1266:2 1262:/ 1258:3 1255:( 1249:+ 1246:} 1241:k 1237:) 1233:2 1229:/ 1225:3 1222:( 1219:{ 1214:k 1210:2 1198:2 1187:k 1183:) 1179:2 1175:/ 1171:3 1168:( 1162:+ 1157:k 1153:2 1146:{ 1141:= 1138:) 1135:k 1132:( 1129:g 1082:2 1071:k 1067:) 1063:2 1059:/ 1055:3 1052:( 1046:+ 1041:k 1037:2 1016:) 1013:k 1010:( 1007:g 985:k 981:1 960:1 952:k 948:2 925:k 921:2 900:1 889:k 885:) 881:2 877:/ 873:3 870:( 847:c 825:k 821:1 798:k 794:2 771:k 767:3 760:1 749:k 745:) 741:2 737:/ 733:3 730:( 722:k 718:2 714:= 711:c 691:x 663:} 660:x 657:{ 634:x 601:= 598:) 595:6 592:( 589:g 562:= 559:) 556:5 553:( 550:g 519:= 516:) 513:4 510:( 507:g 479:9 476:= 473:) 470:3 467:( 464:g 433:) 430:4 427:( 424:g 379:4 376:= 373:) 370:2 367:( 364:g 332:) 329:4 326:( 323:g 303:9 297:) 294:3 291:( 288:g 268:4 262:) 259:2 256:( 253:g 233:1 230:= 227:) 224:1 221:( 218:g 198:k 178:s 158:) 155:k 152:( 149:g 129:k 117:) 115:k 113:( 111:g 58:k 54:s 50:s 43:k 20:)

Index

Waring problem
number theory
natural number
positive integer
Edward Waring
Hilbert
Mathematics Subject Classification
Diophantus
sum of four perfect squares
Claude Gaspard Bachet de Méziriac
Joseph-Louis Lagrange
four-square theorem
Lagrange's four-square theorem
Bachet
Diophantus
Arithmetica
Fermat
Liouville
Hardy
Littlewood
Wieferich
A. J. Kempner
R. Balasubramanian
J.-M. Deshouillers
Chen Jingrun
Pillai
integral
fractional part
J. A. Euler
Leonhard Euler

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