Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Jahangir Cheshmavar"'
Publikováno v:
AUT Journal of Mathematics and Computing, Vol 5, Iss 2, Pp 131-142 (2024)
In this paper, the class of homogeneous Siklos space-times is considered from algebraic point of view and the generalized Ricci solitons are completely classified.
Externí odkaz:
https://doaj.org/article/623de865b25a4edd958fe6b816740757
Publikováno v:
Linear and Multilinear Algebra. 71:1323-1337
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::077e8cd540b96a4644eb4a56a58c702d
https://doi.org/10.1080/03081087.2022.2061400
https://doi.org/10.1080/03081087.2022.2061400
Publikováno v:
Filomat. 36:2205-2213
In this paper we develop some properties about bounded linear operators. We investigate relationships between bounded below and norm equivalent operators. Finally, we study conditions under which those operators become Fredholmn, Weyl and Browder typ
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b1cd3488074216b418e762dbdf92427
https://doi.org/10.2298/fil2207205h
https://doi.org/10.2298/fil2207205h
In this paper, we give a multiplication operator representation of bounded self-adjoint operators T on a Hilbert space H such that -- is a frame for H, for some -- . We state a necessary condition in order for a frame -- to have a representation of t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b34838e230213fc91d0d26057a1f9a7a
http://arxiv.org/abs/2301.06183
http://arxiv.org/abs/2301.06183
Publikováno v:
Функциональный анализ и его приложения. 55:62-74
В статье продолжаются исследования Касаццы, Кутынека и Ламмерса, которые получили развитие в работах Стоевой и Кристенсена. Получены но
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9739970c2bdad10f78dae970b75f4b7
https://doi.org/10.4213/faa3835
https://doi.org/10.4213/faa3835
Publikováno v:
Filomat. 34:2185-2191
In this paper, Lambert multipliers acting between Orlicz spaces are characterized based on some properties of conditional expectation operators. We provide a necessary and sufficient condition for the *-multiplication operators to have closed range.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::60fa2f94fdb1699c648ad92303639332
https://doi.org/10.2298/fil2007185c
https://doi.org/10.2298/fil2007185c
Publikováno v:
Open Mathematics, Vol 9, Iss 2, Pp 441-448 (2011)
In this paper, we consider the well-known Rudin-Shapiro polynomials as a class of constant multiples of low-pass filters to construct a sequence of compactly supported wavelets.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::21835a42b5bf57120a843d9c53c95047
https://doaj.org/article/4fe4e636e87d420cbc69feea8c67c61b
https://doaj.org/article/4fe4e636e87d420cbc69feea8c67c61b
Autor:
Jahangir Cheshmavar, Hartmut Führ
We study (homogeneous and inhomogeneous) anisotropic Besov spaces associated to expansive dilation matrices $A \in {\rm GL}(d,\mathbb{R})$, with the goal of clarifying when two such matrices induce the same scale of Besov spaces. For this purpose, we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a7998244e3c5ee172f6eb63e0982e8e6
Autor:
Jahangir Cheshmavar
Publikováno v:
International Journal of Apllied Mathematics. 26
In this paper, we introduce nonuniform multiresolution p-analysis on L 2 (R + ), and then we construct the associated p-wavelet packets for such a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::02563876b97298e69f9c355f223fb56e
https://doi.org/10.12732/ijam.v26i3.4
https://doi.org/10.12732/ijam.v26i3.4