Sergei G. Pyatkov

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Leading scientific researcher,

Professor, Dr. Sergei G. Pyatkov

Sobolev Institute of Mathematics,

Siberian Branch of Russian Academy of Sciences,

prospect Koptyuga, 4,

630090 Novosibirsk, Russia

Phone: (+7-383)363-46-60

Fax: (+7-383)333-25-98

E-mail: pyatkov@uriit.ru

	Personal data
	Education and degrees
	Experience in scientific institutes
	Teaching experience
	Research interests
	Participation in scientific projects, grants and awards
	Selected publications

Personal data:

Last name: Pyatkov
First name: Sergei
Middle name: Grigor’evich
Data of birth: January 5, 1956 (Altai region, Russia)
Languages: Russian (native), English

Education and degrees:

1973-1978 - Department of Mathematics, Novosibirsk State University (Novosibirsk).

1977 - Diploma (M. Sc.), Novosibirsk State University (Novosibirsk).

1978-1980 - Probationer-researcher, Institute of Mathematics of the Siberian Branch of the USSR Academy of Sciences (Novosibirsk).

1982 - Candidate of Physical and Mathematical Sciences (Ph. D.), Institute of Mathematics of the Siberian Branch of the USSR Academy of Sciences (Novosibirsk), Ph. D. Thesis "Well-posed boundary value problems for composite type equations and their generalizations".

1995 - Doctor of Physical and Mathematical Sciences (D. Sc.), Novosibirsk State University (Novosibirsk), D. Sc. Thesis "Indefinite spectral problems and their applications to the theory of boundary value problems of mathematical physics".

Experience in scientific institutes:

1980-1986 - Junior Scientific Researcher, Institute of Mathematics of the Siberian Branch of the USSR Academy of Sciences (Novosibirsk).

1986-1993 - Scientific Researcher, Institute of Mathematics of the Siberian Branch of the USSR Academy of Sciences (Novosibirsk).

1993-1995 - Senior Scientific Researcher, Institute of Mathematics of the Siberian Branch of the USSR Academy of Sciences (Novosibirsk).

1995-present - Leading Scientific Researcher, Sobolev Institute of Mathematics of the Siberian Branch of the Russian Academy of Sciences (Novosibirsk).

Teaching experience:

1983-1991 - Assistant Lecturer, Novosibirsk State University (Novosibirsk).

1991-1996 - Associate Professor, Novosibirsk State University (Novosibirsk).

1996-2002 - Full Professor, Novosibirsk State University (Novosibirsk).

2002-present - Full Professor, Ugra State University (Hanty-Mansiisk, Russia).

Research interests:

Partial differential equations: spectral problems, boundary value problems; mathematical analysis

Participation in scientific projects, grants and awards:

Projects supported by the Russian Foundation for Basic Research (RFBR): no. 97-01-00894, no. 99-01-00621, no. 01-01-00796, no. 03-01-00819.

Selected publications:

Monographs:

1. Nonclassical Operator-Differential Equations. Nauka, Novosibirsk, 2000. (jointly with I.E.Egorov, S.V.Popov; Russian)

2. Operator Theory. Nonclassical Problems. Utrecht, Boston, Koln, Tokyo, VSP, 2002.

Articles:

1. On the solvability of a boundary value problem for a parabolic equation with changing time direction. Dokl. Akad. Nauk SSSR, 285 (1985), no. 6, pp. 1327-1329; English transl. in Sov. Math. Dokl., 32 (1985), pp. 895-897.

2. Solvability of a boundary value problem for a nonlinear parabolic equation with changing direction of time. Sib. Mat. Zh., 28 (1987), no. 3, pp. 184-192; English transl. in Sib. Math J., 28 (1987), no. 3, pp. 498-505. (jointly with A.G.Podgaev)

3. Some properties of eigenfunctions of linear pencils. Sib. Mat. Zh., 30 (1989), no. 4, pp. 111-124; English transl. in Sib. Math J., 30 (1989), no. 4, pp. 585-597.

4. Some properties of eigenfunctions of linear pencils and applications to mixed type operator-differential equations. Partial Differential Equations, Banach Center Publications, Polish Academy of Sciences, Warsaw, 27 (1992), part II, pp. 373-382.

5. On some problems of eigenfuctions of linear pencils. Mat. Zametki, 51 (1992), no. 1, pp. 141-148. (Russian)

6. On the theory of nonclassical equations of mathematical physics. Conditionally Well-Posed Problems. Moscow, Utrecht, TVP/TSP, 1993, pp. 299-321. (jointly with V.N.Vragov, A.I.Kozhanov, S.N.Glazatov)

7. Elliptic eigenvalue problems with an indefinite weight function. Sib. Adv. Math., 4 (1994), no. 2, pp. 87-127.

8. Riesz completeness of the eigenelements and associated elements of the linear selfadjoint pencils. Mat. Sb., 185 (1994), no.3, pp. 93-116; English transl. in Russian Acad. Sci. Sb. Math., 81 (1995), no. 2, pp. 343-361.

9. Riesz's bases from the eigenvectors and associated vectors of elliptic eigenvalue problems with an indefinite weight functions. Differential Equation Theory. Nova Science Publishers, New York, 1996, pp. 357-374.

10. Counterexamples in indefinite Sturm-Liouville problems. Sib. Adv. Math., 7 (1997), no. 4, pp. 1-8. (jointly with N.L.Abasheeva)

11. Interpolation of some function spaces and indefinite Sturm-Liouville problems. Differential and Integral Operators. Vol. I. Proceedings of the international workshop on operator theory and applications, IWOTA 95, Regensburg, Germany, July 31-August 4, 1995. Basel: Birkauser. Oper. Theory, Adv. Appl., 102 (1998), pp. 179-200.

12. Indefinite elliptic spectral problems. Sib. Mat. Zh., 39 (1998), no. 2, pp. 409-426; English transl. in Sib. Math J., 39 (1998), no. 2, pp. 358-372.

13. On some properties of imaginary powers of positive operators. Mat. Zametki YaGU, 7 (2000), no. 2, pp. 159-168. (Russian)

14. Solvability of boundary value problems for operator-differential equations of mixed type. Sib. Mat. Zh., 41 (2000), no. 6, pp. 1419-1435; English transl. in Sib. Math J., 41 (2000), no. 4, pp. 1174-1187. (jointly with N.L.Abasheeeva)

15. Interpolation of weighted Sobolev spaces. Mat. Trudy, 4 (2001), no. 1, pp. 122-173; English transl. in Sib. Adv. Math., 10 (2000), no. 3, pp. 83-132.

16. Elliptic spectral problems with an indefinite weight functions. Mat. Trudy, 4 (2001), no. 2, pp. 138-154; English transl. in Sib. Adv. Math., 10 (2000), no. 4, pp. 134-150.

17. Solvability of an inverse problem for a class of singular parabolic equations. Inverse Problems and Information Technologies, 1 (2002), no. 2, pp. 115-123.

18. Solvability of boundary value problems for operator-differential equations: the degenerate case. Sib. Mat. Zh., 43 (2002), no. 3, pp. 549-561; English transl. in Sib. Math J., 43 (2002), no. 3, pp. 678-693. (jointly with N.L.Abasheeva)

19. Boundary value problems for some classes of singular parabolic equations. Mat. Trudy, 6 (2003), no. 2, pp. 144-208. (Russian)

20. Solvability of some inverse problems for parabolic equations. J. Inverse Ill-Posed Probl., 12 (2004), no. 4, pp. 397-412.

21. The best constant of Sobolev inequality in an $n$ dimensional Euclidean space. Sci. Math. Jpn., 61 (2005), no. 1, pp. 15-23. (jointly with Y.Kametaka, K.Watanabe, A.Nagai)

22. Solvability of one boundary-value problem for pseudoparabolic equations of the fourth order. Vestnik NGU. Ser.: matematika, mekhanika, informatika. 5 (2005), iss. 3, pp. 43-56. (Russian)

23. Inverse problems for the Black-Scholes equation and related problems. J. Inverse Ill-Posed Probl., 15 (2007), no. 9, pp. 955-974.

24. Certain inverse problems for parabolic equations. J. Math. Sci., 150 (2008), no. 5, pp. 2422-2433.