نتایج جستجو برای: real elements

تعداد نتایج: 790737  

Journal: :International Journal of Mathematics and Mathematical Sciences 1998

Journal: :Journal of Applied Mathematics and Stochastic Analysis 2006

Journal: :bulletin of the iranian mathematical society 2015
y. guan c. wang j. hou

let $mathcal {a} $ and $mathcal {b} $ be c$^*$-algebras. assume that $mathcal {a}$ is of real rank zero and unital with unit $i$ and $k>0$ is a real number. it is shown that if $phi:mathcal{a} tomathcal{b}$ is an additive map preserving $|cdot|^k$ for all normal elements; that is, $phi(|a|^k)=|phi(a)|^k $ for all normal elements $ainmathcal a$, $phi(i)$ is a projection, and there exists a posit...

Journal: :Linear Algebra and its Applications 1974

Journal: :Journal of Applied Mathematics and Stochastic Analysis 1997

Journal: :Journal of Mathematical Analysis and Applications 1983

Journal: :American Journal of Applied Sciences 2008

 A topoframe, denoted by $L_{ tau}$,  is a pair $(L, tau)$ consisting of a frame $L$ and a subframe $ tau $ all of whose elements are complementary elements in $L$. In this paper, we define and study the notions of a $tau $-real-continuous function on a frame $L$ and the set of real continuous functions $mathcal{R}L_tau $ as an $f$-ring. We show that $mathcal{R}L_{ tau}$ is actually a generali...

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