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Juris Hartmanis

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33: 832:, Hartmanis talks in detail of this period of his life, in which his father was given an estate, Lestene; the Russians occupied Latvia, took his father away, and confiscated Lestene; the Germans took over once more and restored part of Lestene to his family; and the family left Latvia for Germany before the Russians invaded Latvia again. 402:
Hartmanis continued to make significant contributions to the field of computational complexity for decades. With Leonard Berman, he proved that all natural NP-complete languages are polynomial-time isomorphic and conjectured that this holds for all NP-complete sets. Although the conjecture itself
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Hartmanis's 1981 article gives a personal account of developments in this area and in automata theory and discusses the underlying beliefs and philosophy that guided his research. The book written in honor of his 60th birthday, in particular, the chapter by Stearns, is a valuable resource on
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With P.M. Lewis II, Hartmanis and Stearns also defined complexity classes based on space usage. They proveded the first space hierarchy theorem. In the same year they also proved that every context-free language has deterministic space complexity
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remains open, it has led to a large body of research on the structure of NP-complete sets, culminating in Mahaney's theorem on the nonexistence of sparse NP-complete sets. He and his coauthors also defined the
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in 1958. While at General Electric, he developed many principles of computational complexity theory. In 1965, he became a professor at Cornell University. He was one of the founders and the first chair of its
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These early papers developed many principles of computational complexity theory. Hartmanis's 1981 survey paper provides extensive information on the work in computational complexity theory.
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Cai, Jin-Yi; Gundermann, Thomas; —; Hemachandra, Lane A.; Sewelson, Vivian; Wagner, Klaus; Wechsung, Gerd (December 1988), "The boolean hierarchy I: Structural properties",
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Cai, Jin-Yi; Gundermann, Thomas; —; Hemachandra, Lane A.; Sewelson, Vivian; Wagner, Klaus; Wechsung, Gerd (February 1989), "The boolean hierarchy II: Applications",
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Hartmanis, Juris (July 26, 2009). "Dr. Juris Hartmanis Interview" (text). Interviewed by William Aspray. Ithaca, New York: ACM Oral History interviews.
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Hartmanis contributed to national efforts to advance computer science and engineering (CS&E) in many ways. Most significantly, he chaired the
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brought fresh insight into the early history of computational complexity before his landmark paper with Stearns, touching on interactions among
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remarks that "t is the 1965 paper by Juris Hartmanis and Richard Stearns that marks the beginning of the modern era of complexity theory."
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indicates a masculine grammatical form in the Latvian language. In a similar manner, for example, the philosopher Kant is known as Kant
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Juris Hartmanis has been interviewed four times. Videos are available for two of them. The most far-reaching one is by William Aspray.
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Complexity Theory Retrospective : In Honor of Juris Hartmanis on the Occasion of His Sixtieth Birthday, July 5, 1988
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for fundamental contributions to computational complexity theory and to research and education in computing. He was a
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Mahaney, Stephen R. (October 1982). "Sparse complete sets for NP: Solution of a conjecture of Berman and Hartmanis".
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Memory bounds for recognition of context-free and context-sensitive languages 1965 (with P.M. Lewis and R.E. Stearns)
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Cai, Jin-Yi; Sivakumar, D. (April 1999), "Sparse hard sets for P: resolution of a conjecture of Hartmanis",
1352: 2572: 380: 234: 598:"Classifications of computations by time and memory requirements" 1965 (with P.M. Lewis and R.E. Stearns) 287: 259: 205: 144: 80: 229: 2890: 2885: 1690: 396: 271: 753:
In the Baltic languages, own-names are not lexical constants, but have different grammatical forms.
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In the late 1980s, Hartmanis's exposition on a newly discovered letter dated 20 March 1956 from
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Directorate of Computer and Information Science and Engineering (CISE) from 1996 to 1998.
216:"in recognition of their seminal paper which established the foundations for the field of 2072: 1994: 258:, where Juris Hartmanis received the equivalent of a master's degree in physics from the 1218: 1001:. FOCS 65: Proc. Sixth Ann. Symp Switching Circuit Theory and Logical Design. New York: 2845: 2780: 2768: 2746: 2723: 2717: 2657: 2584: 2515: 2385: 435: 1089:— (1981), "Observations about the development of theoretical computer science", 900: 32: 2879: 2863: 2851: 2820: 2806: 2762: 2703: 2555: 2537: 2533: 2521: 2499: 2397: 2312: 1626: 431: 427: 415: 263: 179: 169: 2291: 1838: 1790: 1159: 733: 601:"Hierarchies of memory limited computations" 1965 (with P.M. Lewis and R.E. Stearns) 2824: 2578: 2511: 2505: 2444: 2438: 2362: 1285: 483: 368: 299:
department (which was one of the first computer science departments in the world).
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Congress 65. New York City: Spartan Books, Inc., Washington, D.C. pp. 31–35.
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Memory bounds for recognition of context-free and context-sensitive languages
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William Aspray interviews Hartmanis for the ACM Oral History interviews, 2009
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Computing the Future: A broader agenda for computer science and engineering
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Computing the Future: A broader agenda for computer science and engineering
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Computing the Future: A broader agenda for computer science and engineering
1807:(1990). "Juris Hartmanis: The beginnings of computational complexity". In 595:"Computational complexity of recursive sequences" 1964 (with R.E. Stearns) 308:
Computing the Future – A Broad Agenda for Computer Science and Engineering
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2001 ... Juris Hartmanis, par izcilu ieguldījumu datorzinātņu attīstībā.
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Bulletin of the European Association for Theoretical Computer Science
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National Academy of Sciences Members and Foreign Associates Elected
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Classifications of computations by time and memory requirements
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interviews Hartmanis for the Cornell ecommons collection, 2010
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Hartmanis was born in Latvia on July 5, 1928. He was a son of
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Members of the United States National Academy of Engineering
1552:"On isomorphisms and density of NP and other complete sets" 200:(July 5, 1928 – July 29, 2022) was a Latvian-born American 1143:
Purdue University created the first CS Department in 1962
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American Association for the Advancement of Science (AAAS)
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Members of the United States National Academy of Sciences
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Feasible Computations and Provable Complexity Properties
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interviews Hartmanis as ACM Turing Award recipient, 2018
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Feasible Computations and Provable Complexity Properties
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1994 fellows of the Association for Computing Machinery
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Garfinkel, Simson; Spafford, Eugene H. (October 2022).
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Society for Industrial and Applied Mathematics (SIAM)
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received the highest prize in computer science, the
2253:. Ithaca, New York: Internet-First University Press. 1949:"Alexander von Humboldt Foundation, Juris Hartmanis" 1247:
List of Fellows of the American Mathematical Society
1219:"Juris Hartmanis to Lead NSF's Directorate for CISE" 375:." Their paper defined the foundational notion of a 359:
Computational complexity: foundational contributions
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In 1989, Hartmanis was elected as a member into the
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American Association for the Advancement of Science
1084: 1082: 1080: 801: 799: 777: 775: 352:in 2001 for his contributions to computer science. 165: 153: 127: 117: 99: 73: 61: 39: 23: 1545: 1543: 895: 893: 808:"Juris Hartmanis, 1993 ACM Turing Award Recipient" 616:"Gödel, von Neumann, and the P =? NP problem" 1989 2125:Algebraic Structure Theory of Sequential Machines 1850: 1848: 1437: 1435: 1040:Transactions of the American Mathematical Society 559:Algebraic Structure Theory of Sequential Machines 395:, which contained the essential idea that led to 1309: 1307: 761:is the stem of the own-name, whereas the suffix 1035:"On the computational complexity of algorithms" 924:Computational complexity of recursive sequences 2073:"Juris Hartmanis: Distinguished Service Award" 1406:"In memoriam: Juris Hartmanis 1928–2022" 1024: 1022: 1020: 2347: 1857:"Gödel, von Neumann, and the P =? NP problem" 1181:Hartmanis, Juris; Lin, Herbert, eds. (1992). 944: 942: 843:"A Tribute to Astrid Ivask: A Literary Light" 8: 2921:Fellows of the American Mathematical Society 921:—; Stearns, R.E. (November 11, 1964). 306:study that resulted in the 1992 publication 1474:"Combinatorics, complexity, and randomness" 1353:"图灵奖得主,"计算复杂性"理论奠基人Juris Hartmanis逝世,享年94岁" 1150:Cornell started its CS Department in 1965, 2354: 2340: 2332: 999:Hierarchies of memory limited computations 828:In two of the interviews cited in section 757:must be understood as Hartman-is, whereby 20: 2976:University of Missouri–Kansas City alumni 2946:California Institute of Technology alumni 1717: 1665: 1634: 1578: 1491: 1423: 1112: 1052: 953:(May 24, 1963). Wayne A. Kalenich (ed.). 901:"University of Missouri Honorary Degrees" 787: 2911:American theoretical computer scientists 2309:Hartmanis biography at A.M. TURING AWARD 489:Humboldt Foundation Research Award, 1993 1653:Journal of Computer and System Sciences 1615:Journal of Computer and System Sciences 1242: 1240: 1092:IEEE Annals of the History of Computing 664: 499:Honorary Doctor of Humane Letters, 1999 16:American computer scientist (1928–2022) 2951:Latvian emigrants to the United States 1280: 1278: 642:interviews Hartmanis in an article in 337:. He was also a foreign member of the 2247:"A Conversation with Juris Hartmanis" 1927:American Academy of Arts and Sciences 478:American Academy of Arts and Sciences 7: 2208:—; Lin, Herbert, eds. (1992). 1378:Waldron, Patricia (August 4, 2022). 871:Some embedding theorems for lattices 503:Computing Research Association (CRA) 292:General Electric Research Laboratory 2266:"An interview with Juris Hartmanis" 2245:Hartmanis, Juris (March 31, 2010). 1905:"NAE Website – Dr. Juris Hartmanis" 710:. New York, NY: Springer New York. 383:. In his own Turing Award lecture, 327:Association for Computing Machinery 2099:National Academy of Sciences (NAS) 268:University of Missouri–Kansas City 14: 2047:"ACM Distinguished Service Award" 1954:Alexander von Humboldt Foundation 806:Hartmanis, Juris (May 17, 2018). 528:Distinguished Service Award, 2013 505:Distinguished Service Award, 2000 355:Hartmanis died on July 29, 2022. 312:National Science Foundation (NSF) 2901:20th-century American scientists 31: 2896:20th-century American engineers 2180:Computational Complexity Theory 1909:National Academy of Engineering 1813:Complexity Theory Retrospective 1765:Complexity Theory Retrospective 829: 575:Computational Complexity Theory 464:National Academy of Engineering 373:computational complexity theory 319:National Academy of Engineering 218:computational complexity theory 2318:Hartmanis biography at Cornell 2021:Computing Research Association 1: 2981:Ohio State University faculty 2956:Latvian World War II refugees 2327:Mathematics Genealogy Project 2017:"Distinguished Service Award" 1995:"Juris Hartmanis: ACM Fellow" 1522:; — (October 6, 1965). 1467:See page 103 of his lecture: 1249:, retrieved January 19, 2013. 681:Mathematics Genealogy Project 583:(ed.) 1992 (with Herbert Lin) 533:American Mathematical Society 331:American Mathematical Society 2966:University of Marburg alumni 2906:American computer scientists 2313:Short Annotated Bibliography 2214:The National Academies Press 1627:10.1016/0022-0000(82)90002-2 1550:Berman, L.; — (1977). 1270:National Academy of Sciences 540:National Academy of Sciences 335:National Academy of Sciences 2971:University of Kansas alumni 1602:Berman–Hartmanis conjecture 1323:Latvian Academy of Sciences 1290:Latvian Academy of Sciences 1146:"History of the Department" 769:in the Lithuanian language. 520:Latvian Academy of Sciences 471:Latvian Academy of Sciences 341:, which bestowed him their 339:Latvian Academy of Sciences 3002: 2941:Cornell University faculty 411:computational complexity. 2961:Santa Fe Institute people 1855:Hartmanis, Juris (1989). 1821:10.1007/978-1-4612-4478-3 1815:. Springer New York, NY. 1773:10.1007/978-1-4612-4478-3 1767:. Springer New York, NY. 1735:SIAM Journal on Computing 1705:SIAM Journal on Computing 1559:SIAM Journal on Computing 1479:Communications of the ACM 868:Hartmanis, Juris (1955). 716:10.1007/978-1-4612-4478-3 645:Communications of the ACM 304:National Research Council 278:under the supervision of 243:. After the Soviet Union 191: 110: 86:University of Kansas City 30: 2249:(video). Interviewed by 1187:National Academies Press 810:(video). Interviewed by 212:, received the 1993 ACM 1359:(in Simplified Chinese) 1317:[Grand Medal]. 1105:10.1109/MAHC.1981.10005 789:10.1145/1141880.1775727 363:In 1993, Hartmanis and 333:, also a member of the 290:, Hartmanis joined the 262:. He then moved to the 245:occupied Latvia in 1940 2936:Turing Award laureates 2386:Maurice Vincent Wilkes 1667:10.1006/jcss.1998.1615 1357:新浪 finance.sina.com.cn 1351:新智元 (July 31, 2022). 993:—; Lewis, P.M.; 949:—; Lewis, P.M.; 905:University of Missouri 847:World Literature Today 381:Time hierarchy theorem 206:computational theorist 2264:Shustek, Len (2015). 2177:—, ed. (1989). 1264:May 27, 2013, at the 547:Selected publications 399:on space complexity. 288:Ohio State University 260:University of Marburg 145:Ohio State University 81:University of Marburg 2986:Scientists from Riga 2152:. Philadelphia, PA: 1534:10.1109/FOCS.1965.14 1011:10.1109/FOCS.1965.11 1005:. pp. 179–190. 814:. Ithaca, New York: 274:in mathematics from 254:They first moved to 2775:Michael Stonebraker 2573:Fernando J. Corbató 2121:Richard E., Stearns 1225:. September 5, 1996 1164:, Carnegie Mellon, 1160:"CS Dept. timeline" 1153:"CS Dept. timeline" 997:(October 6, 1965). 933:10.1109/SWCT.1964.6 2730:Charles P. Thacker 2595:Richard E. Stearns 2477:Kenneth E. Iverson 2427:Edsger W. Dijkstra 2415:James H. Wilkinson 2363:A. M. Turing Award 2212:. Washington, DC: 2027:. January 16, 2015 1329:on January 6, 2022 1185:. Washington, DC: 1167:"CS Dept. history" 531:Inaugural Fellow, 469:Member (foreign): 284:Cornell University 280:Robert P. Dilworth 210:Richard E. Stearns 202:computer scientist 160:Robert P. Dilworth 140:Cornell University 2873: 2872: 2747:Leslie G. Valiant 2623:Douglas Engelbart 2601:Edward Feigenbaum 2231:978-0-309-04740-1 2194:978-0-8218-0131-4 2163:978-0-898710-27-4 2095:"Member Emeritus" 1830:978-1-4612-8793-3 1782:978-1-4612-8793-3 1691:Mahaney's theorem 1493:10.1145/5657.5658 1472:(February 1986). 1384:Cornell Chronicle 1286:"Foreign members" 1272:, April 30, 2013. 1204:978-0-309-04740-1 1171:and a few others. 1157:as did Stanford, 884:10.7907/40KS-0T27 725:978-1-4612-4478-3 677:mathgenealogy.org 673:"Juris Hartmanis" 589:Selected articles 405:Boolean hierarchy 397:Savitch's theorem 230:Mārtiņš Hartmanis 195: 194: 166:Doctoral students 112:Scientific career 2993: 2797:John L. Hennessy 2785:Whitfield Diffie 2759:Shafi Goldwasser 2714:E. Allen Emerson 2710:Edmund M. Clarke 2455:Michael O. Rabin 2449:Herbert A. Simon 2356: 2349: 2342: 2333: 2296: 2295: 2261: 2255: 2254: 2242: 2236: 2235: 2205: 2199: 2198: 2174: 2168: 2167: 2148:— (1978). 2145: 2139: 2138: 2116: 2110: 2109: 2107: 2105: 2091: 2085: 2084: 2082: 2080: 2069: 2063: 2062: 2060: 2058: 2043: 2037: 2036: 2034: 2032: 2013: 2007: 2006: 2004: 2002: 1991: 1985: 1984: 1982: 1980: 1965: 1959: 1958: 1945: 1939: 1938: 1936: 1934: 1919: 1913: 1912: 1901: 1895: 1894: 1892: 1890: 1875: 1869: 1868: 1852: 1843: 1842: 1801: 1795: 1794: 1757: 1751: 1750: 1729: 1723: 1722: 1721: 1712:(6): 1232–1252, 1699: 1693: 1688: 1682: 1677: 1671: 1670: 1669: 1647: 1641: 1640: 1638: 1610: 1604: 1599: 1593: 1592: 1582: 1556: 1547: 1538: 1537: 1515: 1506: 1505: 1495: 1470:Karp, Richard M. 1465: 1459: 1458: 1456: 1454: 1439: 1430: 1429: 1427: 1401: 1395: 1394: 1392: 1390: 1375: 1369: 1368: 1366: 1364: 1348: 1342: 1341: 1336: 1334: 1325:. 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E. 1796: 1781: 1763:, ed. (1990). 1752: 1724: 1694: 1683: 1672: 1660:(2): 280–296, 1642: 1621:(2): 130–143. 1605: 1594: 1565:(2): 305–322. 1539: 1507: 1460: 1443:"Turing Award" 1431: 1396: 1370: 1343: 1321:(in Latvian). 1315:"Lielā medaļa" 1303: 1274: 1251: 1236: 1210: 1203: 1173: 1136: 1127: 1076: 1031:Stearns, R. E. 1016: 980: 938: 910: 889: 874:(PhD thesis). 860: 834: 821: 795: 771: 746: 724: 704:, ed. 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Proc. 876:Cal Tech 734:31789744 538:Member, 476:Member, 462:Member, 455:Fellow, 56:, Latvia 2325:at the 2001:July 9, 1957:. 1993. 1811:(ed.). 1589:0455536 1071:0170805 1063:1994208 975:2272795 759:Hartman 518:of the 393:(log n) 325:of the 276:Caltech 256:Germany 91:Caltech 2866:(2023) 2860:(2022) 2854:(2021) 2848:(2020) 2827:(2019) 2817:(2018) 2803:(2017) 2793:(2016) 2787:(2015) 2777:(2014) 2771:(2013) 2765:(2012) 2755:(2011) 2749:(2010) 2732:(2009) 2726:(2008) 2720:(2007) 2706:(2006) 2700:(2005) 2694:(2004) 2684:(2003) 2678:(2002) 2664:(2001) 2654:(2000) 2637:(1999) 2631:(1998) 2625:(1997) 2619:(1996) 2613:(1995) 2607:(1994) 2597:(1993) 2587:(1992) 2581:(1991) 2575:(1990) 2558:(1989) 2552:(1988) 2546:(1987) 2540:(1986) 2530:(1985) 2524:(1984) 2518:(1983) 2508:(1982) 2502:(1981) 2496:(1980) 2479:(1979) 2473:(1978) 2467:(1977) 2461:(1976) 2451:(1975) 2441:(1974) 2435:(1973) 2429:(1972) 2423:(1971) 2417:(1970) 2400:(1969) 2394:(1968) 2388:(1967) 2382:(1966) 2290:  2228:  2191:  2160:  2131:  2075:. 2013 2053:. 2013 1997:. 1994 1975:. 1994 1929:. 1992 1885:. 1981 1837:  1827:  1789:  1779:  1587:  1500:  1449:. 1993 1292:. 1990 1201:  1121:  1069:  1061:  973:  732:  722:  648:, 2015 542:, 2013 535:, 2013 522:, 2001 496:, 1994 480:, 1992 473:, 1990 466:, 1989 459:, 1981 450:Awards 440:Kleene 438:, and 432:Church 424:Turing 323:Fellow 187:(1986) 182:(1980) 177:(1977) 172:(1969) 118:Fields 106:(1993) 100:Awards 2835:2020s 2740:2010s 2645:2000s 2566:1990s 2487:1980s 2408:1970s 2373:1960s 2288:S2CID 1835:S2CID 1787:S2CID 1555:(PDF) 1059:JSTOR 971:JSTOR 730:S2CID 552:Books 516:] 428:Gödel 416:Gödel 350:] 272:Ph.D. 237:] 2271:CACM 2226:ISBN 2189:ISBN 2158:ISBN 2129:ISBN 2106:2022 2081:2022 2059:2022 2033:2022 2003:2022 1981:2022 1935:2022 1891:2022 1825:ISBN 1777:ISBN 1498:ISSN 1455:2022 1411:CACM 1391:2022 1365:2022 1335:2022 1298:2022 1231:2022 1199:ISBN 1119:ISSN 1003:IEEE 959:IFIP 855:2022 741:2022 720:ISBN 688:2022 571:1978 486:1993 436:Post 286:and 204:and 62:Died 54:Riga 40:Born 2280:doi 2218:doi 2185:AMS 2051:ACM 2025:CRA 1973:ACM 1817:doi 1769:doi 1744:doi 1714:doi 1662:doi 1631:hdl 1623:doi 1575:hdl 1567:doi 1530:doi 1488:doi 1447:ACM 1420:doi 1223:NSF 1191:doi 1109:hdl 1101:doi 1049:doi 1045:117 1007:doi 963:doi 929:doi 880:doi 816:ACM 784:doi 763:-is 712:doi 526:ACM 494:ACM 430:, 418:to 220:". 2882:: 2844:; 2823:; 2813:; 2809:; 2799:; 2783:; 2761:; 2716:; 2712:; 2690:; 2674:; 2670:; 2660:; 2603:; 2593:; 2536:; 2514:; 2457:; 2447:; 2311:, 2286:. 2276:58 2274:. 2268:. 2224:. 2183:. 2097:. 2049:. 2023:. 2019:. 1971:. 1951:. 1925:. 1907:. 1881:. 1865:38 1863:. 1859:. 1847:^ 1833:. 1823:. 1785:. 1775:. 1740:18 1738:, 1710:17 1708:, 1658:58 1656:, 1629:. 1619:25 1617:. 1585:MR 1583:. 1573:. 1561:. 1557:. 1542:^ 1510:^ 1496:. 1484:29 1482:. 1476:. 1445:. 1434:^ 1416:65 1414:. 1408:. 1382:. 1337:. 1306:^ 1288:. 1277:^ 1268:, 1239:^ 1221:. 1197:. 1117:, 1107:, 1095:, 1079:^ 1067:MR 1065:. 1057:. 1043:. 1037:. 1019:^ 983:^ 969:. 941:^ 913:^ 903:. 892:^ 878:. 845:. 798:^ 774:^ 767:as 728:. 718:. 679:. 675:. 514:lv 446:. 434:, 426:, 407:. 348:lv 235:lv 2355:e 2348:t 2341:v 2294:. 2282:: 2234:. 2220:: 2197:. 2166:. 2137:. 2108:. 2083:. 2061:. 2035:. 2005:. 1983:. 1937:. 1911:. 1893:. 1841:. 1819:: 1793:. 1771:: 1746:: 1716:: 1664:: 1639:. 1633:: 1625:: 1591:. 1577:: 1569:: 1563:6 1536:. 1532:: 1504:. 1490:: 1457:. 1428:. 1422:: 1393:. 1367:. 1300:. 1233:. 1207:. 1193:: 1169:. 1162:. 1155:. 1148:. 1111:: 1103:: 1097:3 1073:. 1051:: 1013:. 1009:: 977:. 965:: 935:. 931:: 907:. 886:. 882:: 857:. 818:. 792:. 786:: 743:. 714:: 690:. 565:) 48:) 44:(

Index


Riga
University of Marburg
University of Kansas City
Caltech
Turing Award
Computer science
General Electric
Cornell University
Ohio State University
Doctoral advisor
Robert P. Dilworth
Allan Borodin
Dexter Kozen
Neil Immerman
Jin-Yi Cai
computer scientist
computational theorist
Richard E. Stearns
Turing Award
computational complexity theory
Mārtiņš Hartmanis
lv
Astrid Ivask
occupied Latvia in 1940
World War II
Germany
University of Marburg
United States
University of Missouri–Kansas City

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