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k-synchronized sequence

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517: 274: 169: 349: 225: 770: 432: 762: 575:-synchronized sequences exhibit a number of interesting properties. A non-exhaustive list of these properties is presented below. 895: 249: 28: 636:) takes on finitely many terms. This is an immediate consequence of both the above property and the fact that every 426:. Goč, Schaeffer, and Shallit demonstrated that there exists a finite automaton accepting the language 145: 715:
Frougny, C.; Sakarovitch, J. (1993), "Synchronized rational relations of finite and infinite words",
51: 307: 594: 584: 93: 86: 17: 530:
starting within a given block is novel while all other subwords are not. It then verifies that
766: 874: 840: 724: 352: 210: 761:. Lecture Notes in Computer Science. Vol. 7907. Editors Béal MP., Carton O. Berlin: 889: 728: 862: 188: 24: 844: 690: 651:-synchronized sequences is closed under termwise sum and termwise composition. 522:
This automaton guesses the endpoints of every contiguous block of symbols in
415: 878: 39: 831:
Carpi, A.; D'Alonzo, V. (2010), "On factors of synchronized sequences",
548:
is accepted by this automaton, the subword complexity function of the
512:{\displaystyle \{(n,m)_{k}\mid n\geq 0{\text{ and }}m=\rho _{S}(n)\}.} 63: 673:-synchronized sequence, then both the subword complexity of 367:-synchronized sequences was introduced by Carpi and Maggi. 534:
is the sum of the sizes of the blocks. Since the pair (
435: 310: 252: 213: 148: 269:{\displaystyle \mathbb {N} \rightarrow \mathbb {N} } 85:-synchronized sequences lies between the classes of 689:) (similar to subword complexity, but for distinct 640:-regular sequence taking on finitely many terms is 511: 343: 268: 219: 163: 658:-synchronized sequence have a linear growth rate. 863:"On synchronized sequences and their separators" 191:over Σ × ... × Σ, where ( 8: 753:Goč, D.; Schaeffer, L.; Shallit, J. (2013). 503: 436: 338: 311: 242: ≥ 0 be a natural number and let 821:Carpi & Maggi (2010), Proposition 2.5 812:Carpi & Maggi (2010), Proposition 2.2 803:Carpi & Maggi (2010), Proposition 2.1 794:Carpi & Maggi (2010), Proposition 2.8 785:Carpi & Maggi (2010), Proposition 2.6 604:-synchronized. To be precise, a sequence 526:and verifies that each subword of length 488: 473: 455: 434: 309: 262: 261: 254: 253: 251: 212: 155: 151: 150: 147: 707: 304:-synchronized if the language of pairs 410:(n) denote the subword complexity of 7: 739: 737: 681:) and the palindromic complexity of 414:; that is, the number of distinct 14: 175:-synchronized if the relation {( 164:{\displaystyle \mathbb {N} ^{r}} 62:, each expressed in some fixed 500: 494: 452: 439: 335: 332: 326: 314: 258: 130:representation of some number 1: 861:Carpi, A.; Maggi, C. (2010), 729:10.1016/0304-3975(93)90230-Q 344:{\displaystyle \{(n,f(n))\}} 54:taking as input two strings 29:theoretical computer science 187:)} is a right-synchronized 912: 867:Theoret. Informatics Appl. 616:-automatic if and only if 583:-synchronized sequence is 15: 845:10.1016/j.tcs.2010.08.005 392:) and an infinite string 138: ≥ 2, a subset 743:Carpi & Maggi (2010) 288:) are expressed in base 120: ≥ 2, and let 112:Let Σ be an alphabet of 16:Not to be confused with 755:Subword complexity and 513: 345: 270: 221: 165: 36:-synchronized sequence 833:Theoret. Comput. Sci. 717:Theoret. Comput. Sci. 514: 346: 276:be a map, where both 271: 222: 166: 50:) characterized by a 896:Sequences and series 839:(44–46): 3932–3937, 552:-automatic sequence 433: 384:-automatic sequence 308: 250: 220:{\displaystyle \in } 211: 146: 90:-automatic sequences 879:10.1051/ita:2001129 697:-regular sequences. 598:-automatic sequence 69:, and accepting if 628:-synchronized and 509: 376:Subword complexity 341: 266: 234:Language-theoretic 217: 161: 97:-regular sequences 18:Synchronizing word 772:978-3-642-38770-8 654:The terms of any 476: 189:rational relation 903: 881: 848: 847: 828: 822: 819: 813: 810: 804: 801: 795: 792: 786: 783: 777: 776: 759:-synchronization 750: 744: 741: 732: 731: 712: 518: 516: 515: 510: 493: 492: 477: 474: 460: 459: 350: 348: 347: 342: 275: 273: 272: 267: 265: 257: 226: 224: 223: 218: 170: 168: 167: 162: 160: 159: 154: 126:denote the base- 81:). The class of 52:finite automaton 911: 910: 906: 905: 904: 902: 901: 900: 886: 885: 860: 857: 852: 851: 830: 829: 825: 820: 816: 811: 807: 802: 798: 793: 789: 784: 780: 773: 752: 751: 747: 742: 735: 714: 713: 709: 704: 570: 564:-synchronized. 547: 484: 475: and  451: 431: 430: 409: 378: 373: 361: 306: 305: 292:. The sequence 248: 247: 236: 209: 208: 206: 197: 186: 180: 149: 144: 143: 125: 110: 105: 38:is an infinite 21: 12: 11: 5: 909: 907: 899: 898: 888: 887: 884: 883: 873:(6): 513–524, 856: 853: 850: 849: 823: 814: 805: 796: 787: 778: 771: 745: 733: 706: 705: 703: 700: 699: 698: 659: 652: 645: 591: 569: 566: 543: 520: 519: 508: 505: 502: 499: 496: 491: 487: 483: 480: 472: 469: 466: 463: 458: 454: 450: 447: 444: 441: 438: 405: 377: 374: 372: 369: 360: 357: 340: 337: 334: 331: 328: 325: 322: 319: 316: 313: 264: 260: 256: 235: 232: 216: 202: 195: 182: 176: 158: 153: 121: 116:symbols where 109: 106: 104: 101: 13: 10: 9: 6: 4: 3: 2: 908: 897: 894: 893: 891: 880: 876: 872: 868: 864: 859: 858: 854: 846: 842: 838: 834: 827: 824: 818: 815: 809: 806: 800: 797: 791: 788: 782: 779: 774: 768: 764: 760: 756: 749: 746: 740: 738: 734: 730: 726: 722: 718: 711: 708: 701: 696: 692: 688: 684: 680: 676: 672: 668: 664: 660: 657: 653: 650: 647:The class of 646: 643: 639: 635: 631: 627: 623: 619: 615: 611: 607: 603: 599: 597: 592: 589: 587: 582: 578: 577: 576: 574: 567: 565: 563: 559: 555: 551: 546: 541: 537: 533: 529: 525: 506: 497: 489: 485: 481: 478: 470: 467: 464: 461: 456: 448: 445: 442: 429: 428: 427: 425: 421: 417: 413: 408: 404:(2)..., let ρ 403: 399: 396: =  395: 391: 387: 383: 375: 370: 368: 366: 363:The class of 358: 356: 354: 329: 323: 320: 317: 303: 299: 295: 291: 287: 283: 279: 245: 241: 233: 231: 229: 214: 205: 201: 194: 190: 185: 179: 174: 156: 141: 137: 133: 129: 124: 119: 115: 107: 102: 100: 98: 96: 91: 89: 84: 80: 76: 73: =  72: 68: 65: 61: 57: 53: 49: 45: 41: 37: 35: 30: 26: 19: 870: 866: 836: 832: 826: 817: 808: 799: 790: 781: 758: 754: 748: 720: 716: 710: 694: 686: 682: 678: 674: 670: 666: 662: 655: 648: 641: 637: 633: 629: 625: 621: 617: 613: 609: 605: 601: 595: 585: 580: 572: 571: 561: 557: 553: 549: 544: 539: 535: 531: 527: 523: 521: 423: 419: 411: 406: 401: 397: 393: 389: 385: 381: 379: 364: 362: 301: 297: 293: 289: 285: 281: 277: 243: 239: 237: 227: 203: 199: 192: 183: 177: 172: 139: 135: 131: 127: 122: 117: 113: 111: 108:As relations 94: 87: 82: 78: 74: 70: 66: 59: 55: 47: 43: 33: 32: 22: 691:palindromes 644:-automatic. 103:Definitions 25:mathematics 855:References 568:Properties 418:of length 723:: 45–82, 486:ρ 468:≥ 462:∣ 259:→ 215:∈ 42:of terms 890:Category 763:Springer 588:-regular 416:subwords 380:Given a 134:. Given 40:sequence 669:) is a 538:,  371:Example 359:History 353:regular 198:, ..., 181:, ..., 769:  693:) are 593:Every 579:Every 702:Notes 624:) is 612:) is 560:) is 300:) is 767:ISBN 280:and 238:Let 92:and 64:base 58:and 31:, a 27:and 875:doi 841:doi 837:411 725:doi 721:108 661:If 600:is 422:in 400:(1) 351:is 171:is 142:of 23:In 892:: 871:35 869:, 865:, 835:, 765:. 736:^ 719:, 355:. 246:: 230:. 207:) 99:. 882:. 877:: 843:: 775:. 757:k 727:: 695:k 687:n 685:( 683:s 679:n 677:( 675:s 671:k 667:n 665:( 663:s 656:k 649:k 642:k 638:k 634:n 632:( 630:s 626:k 622:n 620:( 618:s 614:k 610:n 608:( 606:s 602:k 596:k 590:. 586:k 581:k 573:k 562:k 558:n 556:( 554:s 550:k 545:k 542:) 540:m 536:n 532:m 528:n 524:S 507:. 504:} 501:) 498:n 495:( 490:S 482:= 479:m 471:0 465:n 457:k 453:) 449:m 446:, 443:n 440:( 437:{ 424:S 420:n 412:S 407:S 402:s 398:s 394:S 390:n 388:( 386:s 382:k 365:k 339:} 336:) 333:) 330:n 327:( 324:f 321:, 318:n 315:( 312:{ 302:k 298:n 296:( 294:f 290:k 286:n 284:( 282:f 278:n 263:N 255:N 244:f 240:n 228:R 204:r 200:n 196:1 193:n 184:k 178:k 173:k 157:r 152:N 140:R 136:r 132:n 128:k 123:k 118:k 114:k 95:k 88:k 83:k 79:n 77:( 75:s 71:m 67:k 60:n 56:m 48:n 46:( 44:s 34:k 20:.

Index

Synchronizing word
mathematics
theoretical computer science
sequence
finite automaton
base
k-automatic sequences
k-regular sequences
rational relation
regular
subwords
k-regular
k-automatic sequence
palindromes
doi
10.1016/0304-3975(93)90230-Q


Springer
ISBN
978-3-642-38770-8
doi
10.1016/j.tcs.2010.08.005
"On synchronized sequences and their separators"
doi
10.1051/ita:2001129
Category
Sequences and series

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