Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Peter I. Kogut"'
Autor:
Vladimir L. Borsch, Peter I. Kogut
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 31, Iss 2, Pp 89-114 (2023)
Three approaches to solve a well-known IBVP posed for vibrating composite string with piece-wise constant properties have been applied. The main issue of the stufy is the number of the matching conditions to be imposed for the solution to the IBVP to
Externí odkaz:
https://doaj.org/article/3de22524d3854fe79cf0a8844dd76d90
Autor:
Vladimir L. Borsch, Peter I. Kogut
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 31, Iss 1, Pp 95-110 (2023)
Some discrete models for a simplified (compared to that published earlier in JODEA, 28 (1) (2020), 1 – 42) initial boundary value problem for a 1D linear degenerate wave equation, posed in a space-time rectangle and solved earlier exactly (JODEA, 3
Externí odkaz:
https://doaj.org/article/ee8a44006a824fbcb0282fc4457700c0
Autor:
Vladimir L. Borsch, Peter I. Kogut
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 30, Iss 2, Pp 89-121 (2022)
The separation of variables based solution to a simplified (compared to that published earlier in JODEA, 28 (1) (2020), 1 – 42) initial boundary value problem for a 1D linear degenerate wave equation, posed in a space-time rectangle, has been prese
Externí odkaz:
https://doaj.org/article/dc51876e086f4a5daed656d142870b64
Autor:
Vladimir L. Borsch, Peter I. Kogut
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 29, Iss 2, Pp 119-131 (2021)
A 1-parameter initial-boundary value problem for a linear spatially 1-dimensional homogeneous degenerate wave equation, posed in a space-time rectangle, in case of strong degeneracy, was reduced to a linear integro-differential equation of convolutio
Externí odkaz:
https://doaj.org/article/791499f039104ce2a03cb5c4a95e9a58
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 29, Iss 2, Pp 92-118 (2021)
In this paper we discuss the problem of boundary exact null controllability for weakly and strongly degenerate linear wave equation defined on star-shaped planar network. The network is represented by a singular measure in a bounded planar domain. Th
Externí odkaz:
https://doaj.org/article/41a3d898320b492c82cfc90ce14cc75b
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 29, Iss 1, Pp 54-78 (2021)
In this paper we propose a new statement of the spatial increasing resolution problem of MODIS-like multi-spectral images via their fusion with Lansat-like imagery at higher resolution. We give a precise definition of the solution to the indicated pr
Externí odkaz:
https://doaj.org/article/8e0d7b29909043c1859aa66cdeb6e6c4
Autor:
Vladimir L. Borsch, Peter I. Kogut
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 29, Iss 1, Pp 1-31 (2021)
A 1-parameter initial boundary value problem (IBVP) for a linear homogeneous degenerate wave equation (JODEA, 28(1), 1) in a space-time rectangle is considered. The origin of degeneracy is the power law coefficient function with respect to the spatia
Externí odkaz:
https://doaj.org/article/805df17c4ee143938b203158241b9d3e
Autor:
Vladimir L. Borsch, Peter I. Kogut
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 28, Iss 2, Pp 2-20 (2020)
Externí odkaz:
https://doaj.org/article/3d2f90b14f3e4c31937457f07bd91f58
Autor:
Peter I. Kogut, Mykola V. Uvarov
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 28, Iss 2, Pp 47-79 (2020)
In this paper the problem of reconstruction of damaged multi-band optical images is studied in the case where we have no information about brightness of such images in the damage region. Mostly motivated by the crop field monitoring problem, we propo
Externí odkaz:
https://doaj.org/article/86cd73464bc54ff5a975a0d933e7093d
Publikováno v:
Journal of Optimization, Differential Equations and Their Applications, Vol 28, Iss 1, Pp 1-42 (2020)
Externí odkaz:
https://doaj.org/article/2c4d7d0d7e6c41b9aa80a6db7cce22f4