Zobrazeno 1 - 6
of 6
pro vyhledávání: '"Alexander Makin"'
Autor:
Alexander Makin
Publikováno v:
Electronic Journal of Differential Equations, Vol 2018, Iss 95,, Pp 1-7 (2018)
In this article, we consider the spectral problem for an nth-order ordinary differential operator with degenerate boundary conditions. For even n, we construct nontrivial examples of boundary-value problems which have nonclassical asymptotics on th
Externí odkaz:
https://doaj.org/article/13c793b4513340e3bdcb9b694aeec13e
Autor:
Alexander Makin, Bevan Thompson
Publikováno v:
Electronic Journal of Differential Equations, Vol 2004, Iss 34, Pp 1-8 (2004)
In this note, we find a priori estimates in the $L_2$-norm for solutions to the Schrodinger equation with a parameter. It is shown that a constant occuring in the inequality does not depend on the value of the parameter. In particular, the estimate i
Externí odkaz:
https://doaj.org/article/8f5b0b7156354e578c388eb3e08d592b
Autor:
Alexander Makin
Publikováno v:
Journal of Spectral Theory. 12:1567-1588
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b947f30535d4788f2fcc37c1ce529d6e
https://doi.org/10.4171/jst/435
https://doi.org/10.4171/jst/435
Autor:
Alexander Makin
Publikováno v:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics. :1-19
In this paper, we consider non-self-adjoint Dirac operators on a finite interval with complex-valued potentials and quasi-periodic boundary conditions. Necessary and sufficient conditions for a set of complex numbers to be the spectrum of the indicat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c926826e60dcdffdf1ed2514126adad4
https://doi.org/10.1017/prm.2022.33
https://doi.org/10.1017/prm.2022.33
Autor:
Alexander Makin
Publikováno v:
Mathematische Nachrichten. 295:189-210
Spectral problem for the Dirac operator with regular but not strongly regular boundary conditions and complex-valued potential summable over a finite interval is considered. The purpose of this paper is to find conditions under which the root functio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5296c1b017c947b1a9d03cb356dadb49
https://doi.org/10.1002/mana.201900454
https://doi.org/10.1002/mana.201900454
Autor:
Alexander Makin
Publikováno v:
Boundary Value Problems, Integral Equations and Related Problems.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f984ffb95b12577b1b5b65197bb57a2f
https://doi.org/10.1142/9789814327862_0004
https://doi.org/10.1142/9789814327862_0004