نتایج جستجو برای: multiplicative maps

تعداد نتایج: 120157  

Journal: :bulletin of the iranian mathematical society 2011
m. b. asadi

‎We extend the notion of approximately multiplicative to approximately n-multiplicative maps between locally multiplicatively convex algebras and study some properties of these maps‎. ‎‎W‎e prove that every approximately n-multiplicative linear functional on a functionally continuous locally multiplicatively convex algebra is continuous‎. ‎We also study the relationship between approximately mu...

Journal: :Bulletin of the American Mathematical Society 1967

Journal: :Operators and Matrices 2019

Journal: :bulletin of the iranian mathematical society 0
t. ‎ghasemi honary‎ department of‎ ‎mathematics, ‎kharazmi university‎, ‎1561836314, tehran‎, ‎iran m. omidi department of‎ ‎mathematics, ‎kharazmi university‎, ‎1561836314, tehran‎, ‎iran a. h. sanatpour department of‎ ‎mathematics, ‎kharazmi university‎, ‎1561836314, tehran‎, ‎iran

for fr$acute{mathbf{text{e}}}$chet algebras $(a, (p_n))$ and $(b, (q_n))$, a linear map $t:arightarrow b$ is textit{almost multiplicative} with respect to $(p_n)$ and $(q_n)$, if there exists $varepsilongeq 0$ such that $q_n(tab - ta tb)leq varepsilon p_n(a) p_n(b),$ for all $n in mathbb{n}$, $a, b in a$, and it is called textit{weakly almost multiplicative} with respect to $(p_n)$ and $(q_n)$,...

‎In this work‎, ‎we investigate admitting center map on multiplicative metric space‎ ‎and establish some fixed point theorems for such maps‎. ‎We modify the Banach contraction principle and‎ ‎the Caristi's fixed point theorem for M-contraction admitting center maps and we prove some‎ ‎useful theorems‎. ‎Our results on multiplicative metric space improve and modify‎ ‎s...

Journal: :Bulletin of the Australian Mathematical Society 2008

Journal: :MATHEMATICA SCANDINAVICA 2007

Journal: :Algebraic & Geometric Topology 2010

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