Zobrazeno 1 - 7
of 7
pro vyhledávání: '"E. V. Panasenko"'
Publikováno v:
Agrology, Vol 4, Iss 1, Pp 3-9 (2020)
Increasing the grain yield of winter wheat in Ukraine and in the world is largely related to achievements in selection and improvement of agrotechnics for its growing. Modern high-yielding varieties of winter wheat are characterized by a longer perio
Externí odkaz:
https://doaj.org/article/a990574b210a42428a152f9b6180ba34
Publikováno v:
Ukrainian Mathematical Journal. 73:1009-1022
Publikováno v:
Ukrains’kyi Matematychnyi Zhurnal. 73:867-878
UDC 517.9 We investigate boundary value problems for the Lyapunov equation in the Hilbert space in the case where the corresponding problem is defined on an interval that depends on a parameter $\varepsilon$. We obtain necessary and sufficient condit
Autor:
O. O. Pokutnyi, E. V. Panasenko
Publikováno v:
Journal of Mathematical Sciences. 246:394-409
We study boundary-value problems for a Lyapunov-type equation in the space Lp.(I, ℒ(ℋ)): Necessary and sufficient conditions for the solvability of the corresponding boundary-value problem are established both in linear and nonlinear cases. The s
Autor:
O. O. Pokutnyi, E. V. Panasenko
Publikováno v:
Journal of Mathematical Sciences. 236:313-332
We establish sufficient conditions for the bifurcation of solutions of the boundary-value problems for the Lyapunov equation in Hilbert spaces. The cases where the generating equation has or does not have solutions are analyzed. As an example, we con
Autor:
E. V. Panasenko, O. O. Pokutnyi
Publikováno v:
Journal of Mathematical Sciences. 223:298-304
We propose an approach to the construction of solutions and quasisolutions of a boundary-value problem for the Lyapunov equation in a Banach space. If the necessary and sufficient conditions for the solvability of this boundary-value problem are sati
Autor:
E. V. Panasenko, O. O. Pokutnyi
Publikováno v:
Journal of Mathematical Sciences. 203:366-374
We find a criterion for the existence of solutions of boundary-value problems in Banach and Hilbert spaces in the case where the linear part contains an unbounded operator. We also establish conditions for the normal and generalized solvability of th