Zobrazeno 1 - 7
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pro vyhledávání: '"K. N. Ospanov"'
Autor:
K. N. Ospanov, A. N. Yesbayev
Publikováno v:
Вестник КазНУ. Серия математика, механика, информатика, Vol 110, Iss 2, Pp 18-26 (2021)
In this paper we consider the properties of the resolvent of a linear operator corresponding to a degenerate singular second-order differential equation with variable coefficients, considered in the Lebesgue space. The singularity of the specified di
Externí odkaz:
https://doaj.org/article/e368fe114d3b46fa8368f569089ed0c7
Autor:
A. N. Yesbayev, K. N. Ospanov
Publikováno v:
Вестник КазНУ. Серия математика, механика, информатика, Vol 109, Iss 1, Pp 25-34 (2021)
В работе рассматривается дифференциальное уравнение второго порядка с неограниченными коэффициентами. Получены достаточные условия с
Externí odkaz:
https://doaj.org/article/43dca2722d484dfebda01bb37509a235
Autor:
T. N. Bekzhan, K. N. Ospanov
Publikováno v:
Russian Mathematics. 60:15-20
Let M be a von Neumann algebra equipped with a faithful normal tracial state τ, A be a subdiagonal subalgebra of M, and let Φ be a growth function. We transfer the results of Studia Math. 217, No. 3, 265–287 (2013) to the noncommutative HΦ(A) sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::38c0187b2ab57a3ad96a3edbb786b719
https://doi.org/10.3103/s1066369x16120033
https://doi.org/10.3103/s1066369x16120033
Autor:
K. N. Ospanov
Publikováno v:
Trends in Mathematics ISBN: 9783319488103
In this work we consider the three-member second order differential equation with unbounded intermediate coefficient. We give the solvability results and some conditions for compactness of the resolvent of corresponding operator. Furthermore, we disc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f952cf0a4e0d6affd473750a24a6f6ed
https://doi.org/10.1007/978-3-319-48812-7_17
https://doi.org/10.1007/978-3-319-48812-7_17
Autor:
K. N. Ospanov
Publikováno v:
Trends in Mathematics ISBN: 9783319125763
In this paper we study the binomial second order elliptic equation. The coefficient and the right-hand side of this equation belong to some space M of type F. We find necessary and sufficient conditions on M under which a generalized solution of this
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e84b8e743c70c1316e0c2bc62cbb79fb
https://doi.org/10.1007/978-3-319-12577-0_4
https://doi.org/10.1007/978-3-319-12577-0_4
Publikováno v:
AIP Conference Proceedings.
In this work a necessary and sufficient condition for the compactness of the resolvent of one second order degenerate differential operator in L2 is obtained. We also discuss the two-sided estimates for the radius of fredholmness of this operator.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40cc426c0bc9a07e3cfe426e6ba04071
https://doi.org/10.1063/1.4904559
https://doi.org/10.1063/1.4904559
Autor:
K. N. Ospanov
Publikováno v:
Ukrainian Mathematical Journal. 48:1768-1775
For an inhomogeneous generalized Cauchy-Riemann system with nonsmooth coefficients separated from zero, we establish conditions for the solvability and estimation of a weighted solution and its first-order derivatives.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5e8fb0e5cb775a54ecddbaa63cb33e7b
https://doi.org/10.1007/bf02529497
https://doi.org/10.1007/bf02529497