Volume 7, Issue 2

 

ارسال های اخیر

  • The structure of the set of all $C^*$-convex maps in $*$-rings 

    Ebrahimi Meymand, Ali (Vali-e-Asr university of Rafsanjan, 2020-11-01)
    In this paper, for every unital $*$-ring $mathcal{S}$, we investigate the Jensen's inequality preserving maps on $C^*$-convex subsets of $mathcal{S}$, which we call them $C^*$-convex maps on $mathcal{S}$. We consider an ...

  • Weak and cyclic amenability of certain function algebras 

    Khoddami, Ali Reza (Vali-e-Asr university of Rafsanjan, 2020-11-01)
    We consider $C^{bvarphi}(K)$ to be the space $C^b(K)$ equipped with the product $fcdot g=fvarphi g$ for all $f, gin C^b(K)$ where, $K=overline{B_1^{(0)}}$ is the closed unit ball of a non-zero normed vector space $A$ and ...

  • The Banach algebras with generalized matrix representation 

    Barootkoob, S. (Vali-e-Asr university of Rafsanjan, 2020-11-01)
    A Banach algebra $mathfrak{A}$ has a generalized Matrix representation if there exist the algebras $A, B$, $(A,B)$-module $M$ and $(B,A)$-module $N$ such that $mathfrak{A}$ is isomorphic to the generalized matrix Banach ...

  • New Bounds for Entropy of Information Sources 

    Sayyari, Yamin (Vali-e-Asr university of Rafsanjan, 2020-11-01)
    Shannon's entropy plays an important role in information theory, dynamical systems and thermodynamics. In this paper we applying Jensen's inequality in information theory and we obtain some results for the Shannon's entropy ...