Aleksandr Aleksandrovich Razborov (Russian: Алекса́ндр Алекса́ндрович Разбо́ров; born February 16, 1963), sometimes known as Sasha Razborov, is a Soviet and Russian mathematician and computational theorist. He is Andrew McLeish Distinguished Service Professor at the University of Chicago.

Alexander Razborov
Razborov in Oberwolfach, 2024
Born (1963-02-16) February 16, 1963 (age 61)
NationalityAmerican, Russian
Alma materMoscow State University
Known forgroup theory, logic in computer science, theoretical computer science
Awards
Scientific career
FieldsMathematician
InstitutionsUniversity of Chicago, Steklov Mathematical Institute, Toyota Technological Institute at Chicago
Doctoral advisorSergei Adian

Research

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In his best known work, joint with Steven Rudich, he introduced the notion of natural proofs, a class of strategies used to prove fundamental lower bounds in computational complexity. In particular, Razborov and Rudich showed that, under the assumption that certain kinds of one-way functions exist, such proofs cannot give a resolution of the P = NP problem, so new techniques will be required in order to solve this question.

Awards

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Bibliography

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  • Razborov, A. A. (1985). "Lower bounds for the monotone complexity of some Boolean functions" (PDF). Soviet Mathematics - Doklady. 31: 354–357.
  • Razborov, A. A. (June 1985). "Lower bounds on monotone complexity of the logical permanent". Mathematical Notes of the Academy of Sciences of the USSR. 37 (6): 485–493. doi:10.1007/BF01157687. S2CID 120875831.
  • Разборов, Александр Александрович (1987). О системах уравнений в свободной группе (PDF) (in Russian). Московский государственный университет. (PhD thesis. 32.56MB)
  • Razborov, A. A. (April 1987). "Lower bounds on the size of bounded depth circuits over a complete basis with logical addition". Mathematical Notes of the Academy of Sciences of the USSR. 41 (4): 333–338. doi:10.1007/BF01137685. S2CID 121744639.
  • Razborov, Alexander A. (May 1989). "Proceedings of the twenty-first annual ACM symposium on Theory of computing - STOC '89". Proceedings of the 21st Annual ACM Symposium on the Theory of Computing. Seattle, Washington, United States. pp. 167–176. doi:10.1145/73007.73023. ISBN 0897913078.
  • Razborov, A. A. (December 1990). "Lower bounds of the complexity of symmetric boolean functions of contact-rectifier circuits". Mathematical Notes of the Academy of Sciences of the USSR. 48 (6): 1226–1234. doi:10.1007/BF01240265. S2CID 120703863.
  • Razborov, Alexander A.; Rudich, Stephen (May 1994). "Proceedings of the twenty-sixth annual ACM symposium on Theory of computing - STOC '94". Proceedings of the 26th Annual ACM Symposium on the Theory of Computing. Montreal, Quebec, Canada. pp. 204–213. doi:10.1145/195058.195134. ISBN 0897916638.
  • Razborov, Alexander A. (December 1998). "Lower Bounds for the Polynomial Calculus" (PostScript). Computational Complexity. 7 (4): 291–324. CiteSeerX 10.1.1.19.2441. doi:10.1007/s000370050013. S2CID 8130114.
  • Razborov, Alexander A. (January 2003). "Propositional proof complexity" (PostScript). Journal of the ACM. 50 (1): 80–82. doi:10.1145/602382.602406. S2CID 17351318. (Survey paper for JACM's 50th anniversary)

See also

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Notes

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