Zobrazeno 1 - 10
of 15
pro vyhledávání: '"S. N. Kiyasov"'
Autor:
S. N. Kiyasov
Publikováno v:
Russian Mathematics. 66:56-61
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e78d48a9258bb59ede06e242d76b36e2
https://doi.org/10.3103/s1066369x22100073
https://doi.org/10.3103/s1066369x22100073
Autor:
S. N. Kiyasov
Publikováno v:
Russian Mathematics. 64:59-65
We consider a three-dimensional Riemann boundary value problem which has two particular solutions such that, for one of the components, the ratios of the boundary values coincide on the conjugation contour. It is shown that, under certain restriction
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bfc664a70004f9075f09fcf7d40649d
https://doi.org/10.3103/s1066369x20100060
https://doi.org/10.3103/s1066369x20100060
Autor:
S. N. Kiyasov
Publikováno v:
Russian Mathematics. 64:19-25
We show that if a three-dimensional linear conjugation problem has two particular solutions with coinciding ratios of boundary values of two their components, then its general solution can be obtained in closed form.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e42e8f2f2780381f6f1fb9a8617f49dd
https://doi.org/10.3103/s1066369x20020036
https://doi.org/10.3103/s1066369x20020036
Autor:
S. N. Kiyasov
Publikováno v:
Russian Mathematics. 63:19-28
We consider the structure of the set of piecewise meromorphic solutions of a homogeneous linear conjugation problem for a four-dimensional vector. We show that in the presence of three piecewise meromorphic solutions to the linear conjugation problem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c68aa9ce6c13f75a3c5b8bcbeacf6b92
https://doi.org/10.3103/s1066369x19060033
https://doi.org/10.3103/s1066369x19060033
Autor:
S. N. Kiyasov
Publikováno v:
Siberian Mathematical Journal. 59:288-294
Establishing an analogy between the theories of Riemann–Hilbert vector problem and linear ODEs, for the n-dimensional homogeneous linear conjugation problem on a simple smooth closed contour Γ partitioning the complex plane into two domains D+ and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::983625f0f895b6d0bb11c4bb496a1de1
https://doi.org/10.1134/s003744661802012x
https://doi.org/10.1134/s003744661802012x
Autor:
S. N. Kiyasov
Publikováno v:
Lobachevskii Journal of Mathematics. 38:1131-1145
The notion of approximate factorization of a Holder matrix function on a simple smooth closed contour is introduced. The elements of a (2 × 2)-matrix function of a special form are approximated by polynomials in z and 1/z. Sufficient conditions for
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2fd50471857deb35b9e4986a88edd274
https://doi.org/10.1134/s1995080217060166
https://doi.org/10.1134/s1995080217060166
Autor:
S. N. Kiyasov
Publikováno v:
Russian Mathematics. 60:1-10
We offer a method for building a canonical system of solutions of a linear conjugation problem for two-dimensional vector in the case where one of its solution is known.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5bfdd9b3d5955705399e0e960476c974
https://doi.org/10.3103/s1066369x16110013
https://doi.org/10.3103/s1066369x16110013
Autor:
S. N. Kiyasov
Publikováno v:
Russian Mathematics. 59:25-40
We consider structure of the set of piecewise-meromorphic solutions of the homogeneouslinear conjugation problems for three-dimensional vector, and study their relations with a system of two problems of fractional-linear conjugation. The main result
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4ce19b0c9c6454760ec0602e5a8509c
https://doi.org/10.3103/s1066369x15080046
https://doi.org/10.3103/s1066369x15080046
Autor:
S. N. Kiyasov
Publikováno v:
Siberian Mathematical Journal. 56:313-329
We consider the structure of the set of piecewise meromorphic solutions for a homogeneous linear conjugation problem for a three-dimensional vector. We show that, in the presence of two piecewise meromorphic solutions to the linear conjugation proble
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::42b2b4001ac2248d0a630ac573afd9f9
https://doi.org/10.1134/s0037446615020111
https://doi.org/10.1134/s0037446615020111
Autor:
S. N. Kiyasov
Publikováno v:
Russian Mathematics. 57:1-16
We consider the structure of the set of piecewise meromorphic solutions to the linear conjugation problem for a two-dimensional vector and study its relations with the fractional-linear conjugation problem. We prove that under the assumption of the p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7fc89ed72ae1d99a5f299e7e1f296900
https://doi.org/10.3103/s1066369x13010015
https://doi.org/10.3103/s1066369x13010015