مرور Volume 43, Issue 5 بر اساس عنوان
در حال نمایش موارد 1 - 20 از 26
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Affinization of Segre products of partial linear spaces
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)Hyperplanes and hyperplane complements in the Segre product of partial linear spaces are investigated. The parallelism of such a complement is characterized in terms of the point-line incidence. Assumptions, under which ...
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An algorithm for approximating nondominated points of convex multiobjective optimization problems
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper, we present an algorithm for generating approximate nondominated points of a multiobjective optimization problem (MOP), where the constraints and the objective functions are convex. We provide outer ...
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Application of frames in Chebyshev and conjugate gradient methods
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)Given a frame of a separable Hilbert space $H$, we present some iterative methods for solving an operator equation $Lu=f$, where $L$ is a bounded, invertible and symmetric operator on $H$. We present some ...
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Benson's algorithm for nonconvex multiobjective problems via nonsmooth Wolfe duality
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper, we propose an algorithm to obtain an approximation set of the (weakly) nondominated points of nonsmooth multiobjective optimization problems with equality and inequality constraints. We use an extension ...
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Bulletin of the Iranian Mathematical Society
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)
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Complete pivoting strategy for the $IUL$ preconditioner obtained from Backward Factored APproximate INVerse process
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper, we use a complete pivoting strategy to compute the IUL preconditioner obtained as the by-product of the Backward Factored APproximate INVerse process. This pivoting is based on the complete pivoting ...
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Convex combinations of harmonic shears of slit mappings
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper, we study the convex combinations of harmonic mappings obtained by shearing a class of slit conformal mappings. Sufficient conditions for the convex combinations of harmonic mappings of this family to ...
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Critical fixed point theorems in Banach algebras under weak topology features
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper, we establish some new critical fixed point theorems for the sum $AB+C$ in a Banach algebra relative to the weak topology, where $frac{I-C}{A}$ allows to be noninvertible. In addition, a special class of ...
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Diagonal arguments and fixed points
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)A universal schema for diagonalization was popularized by N.S. Yanofsky (2003), based on a pioneering work of F.W. Lawvere (1969), in which the existence of a (diagonolized-out and contradictory) object implies ...
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Dilations for $C^ast$-dynamical systems with abelian groups on Hilbert $C^ast$-modules
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper we investigate the dilations of completely positive definite representations of (C^ast)-dynamical systems with abelian groups on Hilbert (C^ast)-modules. We show that if ((mathcal{A}, G,alpha)) is a ...
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Inverse Sturm--Liouville problems using three spectra with finite number of transmissions and parameter dependent conditions
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this manuscript, we study various by uniqueness results for inverse spectral problems of Sturm--Liouville operators using three spectrum with a finite number of discontinuities at interior points which we impose the ...
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Measure of non strict singularity of Schechter essential spectrum of two bounded operators and application
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper, we discuss the essential spectrum of sum of two bounded operators using measure of non strict singularity. Based on this new investigation, a problem of one-speed neutron transport operator is presented.
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A new characterization of $L_2(q)$ by the largest element orders
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)We characterize the finite simple groups $L_2(q)$ by the group orders and the largest element orders, where $q$ is a prime or $q=2^a$, with $2^a+1$ or $2^a-1$ a prime.
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A new one-step iterative process for approximating common fixed points of a countable family of quasi-nonexpansive multi-valued mappings in CAT(0) spaces
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)In this paper, we propose a new one-step iterative process for a countable family of quasi-nonexpansive multi-valued mappings in a CAT(0) space. We also prove strong and $Delta$-convergence theorems of the ...
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NSE characterization of some linear groups
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)For a finite group $G$, let $nse(G)={m_kmid kinpi_e(G)}$, where $m_k$ is the number of elements of order $k$ in $G$ and $pi_{e}(G)$ is the set of element orders of $G$. In this paper, we prove that $Gcong L_m(2)$ ...
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On a p-Laplacian system and a generalization of the Landesman-Lazer type condition
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)This article shows the existence of weak solutions of a resonance problem for nonuniformly p-Laplacian system in a bounded domain in $mathbb{R}^N$. Our arguments are based on the minimum principle and rely on a generalization ...
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On annihilator ideals in skew polynomial rings
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)This article examines annihilators in the skew polynomial ring $R[x;alpha,delta]$. A ring is strongly right $AB$ if everynon-zero right annihilator is bounded. In this paper, we introduce and investigate a particular ...
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On characterizations of hyperbolic harmonic Bloch and Besov spaces
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)We define hyperbolic harmonic $omega$-$alpha$-Bloch space $mathcal{B}_omega^alpha$ in the unit ball $mathbb{B}$ of ${mathbb R}^n$ and characterize it in terms of $$frac{omegabig((1-|x|^2)^{beta}(1-|y|^2)^{alpha-be ...
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On some generalized recurrent manifolds
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)The object of the present paper is to introduce and study a type of non-flat semi-Riemannian manifolds, called, super generalized recurrent manifolds which generalizes both the notion of hyper generalized recurrent ...
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On the character space of Banach vector-valued function algebras
(Springer and the Iranian Mathematical Society (IMS), 2017-10-01)Given a compact space $X$ and a commutative Banach algebra $A$, the character spaces of $A$-valued function algebras on $X$ are investigated. The class of natural $A$-valued function algebras, those whose ...



