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pro vyhledávání: '"Abkar, Ali"'
Autor:
Abkar, Ali
Autor:
Abkar, Ali
We use the notion of radial derivative to introduce composition-differentiation operators on the Hardy and Bergman spaces of the unit ball and the polydisk. We seek for necessary and sufficient conditions on the inducing functions to ensure that the
Externí odkaz:
http://arxiv.org/abs/2308.15045
Autor:
Abkar, Ali
We study certain weighted Bergman and weighted Besov spaces of holomorphic functions in the polydisk and in the unit ball. We seek Mergelyan-type conditions on the non-radial weight function to guarantee that the dilations of a given function tend to
Externí odkaz:
http://arxiv.org/abs/2304.00448
Autor:
Abkar, Ali
Using partial derivatives $\partial_zf$ and $\partial_{\ol z}f$, we introduce Besov spaces of polyanalytic functions on the unit disk and on the upper half-plane. We then prove that the dilatations of each function in polyanalytic Besov spaces conver
Externí odkaz:
http://arxiv.org/abs/2303.08688
Autor:
Abkar, Ali
We study sufficient conditions on weight functions under which norm approximations by analytic polynomials are possible. The weights we study include radial, non-radial, and angular weights.
Comment: 13 pages
Comment: 13 pages
Externí odkaz:
http://arxiv.org/abs/2202.03667
Autor:
Fouladi, Farhad, Abkar, Ali
In this paper, we use the concept of proximal quasi-normal structure (P. Q-N. S) to study the existence of best proximity points for cyclic mappings, cyclic contractions, relatively Kannan nonexpansive mappings, as well as for orbitally nonexpansive
Externí odkaz:
http://arxiv.org/abs/1907.10656
Autor:
Norouzian, Masoud, Abkar, Ali
We first introduce a notion of convex structure in generalized metric spaces, then we introduce tripartite contractions, tripartite semi-contractions, tripartite coincidence points, as well as tripartite best proximity points for a given triple $(K;S
Externí odkaz:
http://arxiv.org/abs/1904.10309
Akademický článek
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Autor:
Abkar, Ali1 (AUTHOR)
Publikováno v:
Journal of Function Spaces. 8/16/2023, p1-6. 6p.