21 citations · 51 across the 15 of their papers we have counts for
8 papers · 1 filter
Characterization of Lie centralizable mappings on B(X)
Behrooz Fadaee, Hoger Ghahramani, Ayyoub Majidi
Assume that B(X) is the algebra of all bounded linear operators on a complex Banach space X, and let W in B(X) is such that cl(W(X)) is not equal to X or W=zI, where z is a complex…
Jordan and Lie derivations of -Johnson amenable Banach algebras
Hoger Ghahramani, Parvin Zamani
Let U be a -Johnson amenable Banach algebra in which is a non-zero multiplicative linear functional on U. Suppose that X is a Banach U-bimodule such that for all…
Symmetrically pseudo-amenable Banach algebras
Hoger Ghahramani, Parvin Zamani
We introduce and study a new notion of amenability called symmetric pseudo-amenability. We obtain some properties of symmetrically pseudo-amenable Banach algebras and with examples…
Relative amenability of Banach algebras
Hoger Ghahramani, Wania Khodakarami, Esmaeil Feizi
Let A be a Banach algebra and I be a closed ideal of A. We say that A is amenable relative to I, if A/I is an amenable Banach algebra. We study the relative amenability of Banach a…
Automatic continuity of Some linear mappings from certain products of Banach algebras
Hamid Farhadi, Eghbal Ghaderi, Hoger Ghahramani
Let and be Banach algebras and be a nonzero character on . Then the \textit{Lau product Banach algebra} $\mathcal{A}\times_θ\mathcal{U}…
Characterizing derivations and anti-derivations on group algebras through orthogonality
Hoger Ghahramani
Let L^1(G) and M(G) be group algebra and measure algebra of a locally compact group G, respectively and D:L^1(G)-->M(G) be a continuous linear map. We consider D behaving like deri…
Derivations on semidirect products of Banach algebras
Hamid Farhadi, Hoger Ghahramani
Let A and U be Banach algebras such that U is also a Banach A- bimodule with compatible algebra operations, module actions and norm. By defining an approprite action, we turn l1-di…
2n-Weak module amenability of semigroup algebras
Hoger Ghahramani
Let be an inverse semigroup with the set of idempotents . We prove that the semigroup algebra is always -weakly module amenable as an -module,…