Zobrazeno 1 - 10
of 28
pro vyhledávání: '"N. Ospanov"'
Autor:
N. Ospanov
Publikováno v:
Әл-Фараби Атындағы Қазақ Ұлттық Университеті хабаршы шығыстану сериясы, Vol 107, Iss 4 (2023)
ОШАМА – Оңтүстік Кореяның төртінші сауда серіктесі, сондықтан Сеул Оңтүстік-Шығыс Азия елдерінің аймақтық блогына қатысты белсенді сы
Externí odkaz:
https://doaj.org/article/94c3eb8a5ab54b12921482c073d1673c
Publikováno v:
Metalurgija, Vol 55, Iss 4, Pp 709-711 (2016)
In the given article there are presented the results of smelting refined grades of ferromanganese using silicon aluminum reducer. There is established the possibility of smelting medium-carbon ferromanganese of the FeMn-80C20LP grade (ISO 5446-80). T
Externí odkaz:
https://doaj.org/article/9bfca4644db544e08ace95b836cd2d31
Autor:
Kordan N. Ospanov
Publikováno v:
Boundary Value Problems, Vol 2023, Iss 1, Pp 1-11 (2023)
Abstract We studied one class of second-order elliptic equations with intermediate coefficient and proved that the semi-periodic problem on a strip is unique solvable in Hilbert space. We assume that the intermediate coefficient of the equation is co
Externí odkaz:
https://doaj.org/article/616eea91fe9946a09444a7f0562af77a
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:
Kordan N. Ospanov
Publikováno v:
Boundary Value Problems, Vol 2021, Iss 1, Pp 1-12 (2021)
Abstract We give some sufficient conditions for the existence and uniqueness of the solution of a higher-order linear differential equation with unbounded coefficients in the Hilbert space. We obtain some estimates for the weighted norms of the solut
Externí odkaz:
https://doaj.org/article/4d9e43a7617742d093b7409c84a7a9d3
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:
Turdebek N. Bekjan, Kordan N. Ospanov
Publikováno v:
Linear Algebra and its Applications. 664:147-164
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f8f18ace7473289829c9d8cce4773d2
https://doi.org/10.1016/j.laa.2023.01.018
https://doi.org/10.1016/j.laa.2023.01.018
Publikováno v:
Linear and Multilinear Algebra. 70:5606-5617
Let (M,τ) be a semi-finite von Neumann algebra, L0(M) be the set of all τ-measurable operators and μt(x) be the generalized singular number of x∈L0(M). We proved that if 1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9c45e691bd1c912f1f17dd37b2b1b5eb
https://doi.org/10.1080/03081087.2021.1920877
https://doi.org/10.1080/03081087.2021.1920877
Publikováno v:
Positivity. 25:121-148
Let $$E_1,\;E_2$$ be symmetric quasi Banach function spaces on $$(0,\alpha )\;(0
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9999aa35fe210297ff146ed9012c7312
https://doi.org/10.1007/s11117-020-00753-x
https://doi.org/10.1007/s11117-020-00753-x
Publikováno v:
Journal of Function Spaces, Vol 2015 (2015)
We prove the Choi-Davis-Jensen type submajorization inequalities on semifinite von Neumann algebras for concave functions and convex functions.
Externí odkaz:
https://doaj.org/article/696ca034e7fb4def9d32c99d37f39eb0