Volume 39, Issue 3
مرور بر اساس
ارسال های اخیر
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Rings in which elements are the sum of an idempotent and a regular element
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)Let R be an associative ring with unity. An element a in R is said to be r-clean if a = e+r, where e is an idempotent and r is a regular (von Neumann) element in R. If every element of R is r-clean, then ...
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On solubility of groups with finitely many centralizers
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)For any group G, let C(G) denote the set of centralizers of G.We say that a group G has n centralizers (G is a Cn-group) if |C(G)| = n.In this note, we prove that every finite Cn-group with n ≤ 21 is soluble ...
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Biflatness and biprojectivity of Lau product of Banach algebras
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)Amonge other things we give sufficient and necessary conditions for the Lau product of Banachalgebras to be biflat or biprojective.
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Asymptotic properties of the sample mean in adaptive sequential sampling with multiple selection criteria
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)We extend the method of adaptive two-stage sequential sampling toinclude designs where there is more than one criteria is used indeciding on the allocation of additional sampling effort. These
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On nilpotent and solvable polygroups
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)Applications of hypergroups have mainly appeared in special subclasses. One of the important subclasses is the class of polygroups. In this paper, we study the notions of nilpotent and solvable polygroups by using ...
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On pairwise weakly Lindelof bitopological spaces
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)In the present paper we introduce and study the notion of pairwise weakly Lindelof bitopological spaces and obtain some results. Further, we also study the pairwise weakly Lindelof subspaces and subsets, and ...
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Localization operators on homogeneous spaces
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)Let $G$ be a locally compact group, $H$ be a compact subgroup of $G$ and $varpi$ be a representation of the homogeneous space $G/H$ on a Hilbert space $mathcal H$. For $psi in L^p(G/H), 1leq p leqinfty$, and an admissible ...
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phi-Amenable and phi-biflat Banach algebras
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)In this paper we study the concept of ph-biatness ofa Banach algebra A, where ph is a continuous homomorphism on A.We prove that if ph is a continuous epimorphism on A and A hasa bounded approximate ...
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Maximum sum element orders of all proper subgroups of PGL(2, q)
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)In this paper we show that if q is a power of a prime p , then the projective special linear group PSL(2, q) and the stabilizer of a point of the projective line have maximum sum element orders among all ...
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On the convergence of three-step random iterative procesess with errors of nonself asymptotically nonexpansive random mappings
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)begin{abstract} In this paper, we prove some strong and weak convergence of three step random iterative scheme with errors to common random fixed points of three asymptotically nonexpansive nonself random ...
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Contact CR-Warped product submanifolds in Kenmotsu space forms
(Springer and the Iranian Mathematical Society (IMS), 2013-07-01)Abstract: In the present paper, we give a necessary and sufficient condition for contact CR-warped product to be contact CR-product in Kenmotsu space forms.



