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of 65
pro vyhledávání: '"Pyatkov, S. G."'
Autor:
Pyatkov, S. G., Soldatov, O. A.
Under consideration are mathematical models of heat and mass transfer. We study inverse problems of recovering lower-order coefficients in a second order parabolic equation. The coefficients are representable in the form of a finite segments of the s
Externí odkaz:
http://arxiv.org/abs/2412.15635
Autor:
Pyatkov, S. G.
The initial-boundary value problems for linear non-autonomous first order evolution equations are examined. Our assumptions provide a unified treatment which is applicable to many situations, where the domains of the operators may change with time. W
Externí odkaz:
http://arxiv.org/abs/1806.02361
Akademický článek
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Autor:
Evseev, F. A., Pyatkov, S. G.
Publikováno v:
Lobachevskii Journal of Mathematics; Sep2024, Vol. 45 Issue 9, p4490-4499, 10p
Autor:
Pyatkov, S. G.1 (AUTHOR) s_pyatkov@ugrasu.ru, Baranchuk, V. A.1 (AUTHOR)
Publikováno v:
Mathematical Notes. Feb2023, Vol. 113 Issue 1/2, p93-108. 16p.
Autor:
Pyatkov, S. G.
We describe necessary and sufficient conditions for a $J$-dissipative operator in a Krein space to have maximal semidefinite invariant subspaces. The semigroup properties of the restrictions of an operator to these subspaces are studied. Applications
Externí odkaz:
http://arxiv.org/abs/1007.4131
On Some Classes of Inverse Problems of Recovering the Heat Transfer Coefficient in Stratified Media.
Autor:
Belonogov, V. A.1 (AUTHOR) vladimir.belonogow@yandex.ru, Pyatkov, S. G.1,2,3 (AUTHOR)
Publikováno v:
Siberian Mathematical Journal. Mar2022, Vol. 63 Issue 2, p206-223. 18p.
Autor:
Pyatkov, S. G.1,2 (AUTHOR) pyatkov@math.nsc.ru
Publikováno v:
Siberian Mathematical Journal. May2021, Vol. 62 Issue 3, p489-502. 14p.
Autor:
Dzhamalov, S. Z.1 (AUTHOR) siroj63@mail.ru, Pyatkov, S. G.2,3 (AUTHOR)
Publikováno v:
Siberian Mathematical Journal. Jul2020, Vol. 61 Issue 4, p610-625. 16p.