مرور Volume 42, Issue 5 بر اساس تاریخ انتشار
در حال نمایش موارد 1 - 20 از 20
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On a functional equation for symmetric linear operators on $C^{*}$ algebras
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)Let $A$ be a $C^{*}$ algebra, $T: Arightarrow A$ be a linear map which satisfies the functional equation $T(x)T(y)=T^{2}(xy),;;T(x^{*})=T(x)^{*} $. We prove that under each of the following conditions, $T$ must ...
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Sufficient global optimality conditions for general mixed integer nonlinear programming problems
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)In this paper, some KKT type sufficient global optimality conditions for general mixed integer nonlinear programming problems with equality and inequality constraints (MINPP) are established. We achieve this by ...
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Common solutions to pseudomonotone equilibrium problems
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)In this paper, we propose two iterative methods for finding a common solution of a finite family of equilibrium problems for pseudomonotone bifunctions. The first is a parallel hybrid extragradient-cutting algorithm ...
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Numerical approach for solving a class of nonlinear fractional differential equation
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)It is commonly accepted that fractional differential equations play an important role in the explanation of many physical phenomena. For this reason we need a reliable and efficient technique for the solution of ...
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Bulletin of the Iranian Mathematical Society
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)
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Some commutativity theorems for $*$-prime rings with $(sigma,tau)$-derivation
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)Let $R$ be a $*$-prime ring with center $Z(R)$, $d$ a non-zero $(sigma,tau)$-derivation of $R$ with associated automorphisms $sigma$ and $tau$ of $R$, such that $sigma$, $tau$ and $d$ commute with $'*'$. ...
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Operator-valued tensors on manifolds
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)In this paper we try to extend geometric concepts in the context of operator valued tensors. To this end, we aim to replace the field of scalars $ mathbb{R} $ by self-adjoint elements of a commutative $ C^star $-algebra, ...
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Forced oscillations of a damped Korteweg-de Vries equation on a periodic domain
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)In this paper, we investigate a damped Korteweg-de Vries equation with forcing on a periodic domain $mathbb{T}=mathbb{R}/(2pimathbb{Z})$. We can obtain that if the forcing is periodic with small amplitude, then ...
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Irreducible characters of Sylow $p$-subgroups of the Steinberg triality groups ${}^3D_4(p^{3m})$
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)Here we construct and count all ordinary irreducible characters of Sylow $p$-subgroups of the Steinberg triality groups ${}^3D_4(p^{3m})$.
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On list vertex 2-arboricity of toroidal graphs without cycles of specific length
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)The vertex arboricity $rho(G)$ of a graph $G$ is the minimum number of subsets into which the vertex set $V(G)$ can be partitioned so that each subset induces an acyclic graph. A graph $G$ is called list vertex $k$-arborable ...
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Which elements of a finite group are non-vanishing?
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)Let $G$ be a finite group. An element $gin G$ is called non-vanishing, if for every irreducible complex character $chi$ of $G$, $chi(g)neq 0$. The bi-Cayley graph ${rm BCay}(G,T)$ of $G$ with respect to a subset ...
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A note on Fouquet-Vanherpe’s question and Fulkerson conjecture
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)The excessive index of a bridgeless cubic graph $G$ is the least integer $k$, such that $G$ can be covered by $k$ perfect matchings. An equivalent form of Fulkerson conjecture (due to Berge) is that every bridgeless ...
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Composition operators and natural metrics in meromorphic function classes $Q_p$
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)In this paper, we investigate some results on natural metrics on the $mu$-normal functions and meromorphic $Q_p$-classes. Also, these classes are shown to be complete metric spaces with respect to the corresponding ...
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Boundary temperature reconstruction in an inverse heat conduction problem using boundary integral equation method
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)In this paper, we consider an inverse boundary value problem for two-dimensional heat equation in an annular domain. This problem consists of determining the temperature on the interior boundary curve from the Cauchy ...
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The Fischer-Clifford matrices and character table of the maximal subgroup $2^9{:}(L_3(4){:}S_3)$ of $U_6(2){:}S_3$
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)The full automorphism group of $U_6(2)$ is a group of the form $U_6(2){:}S_3$. The group $U_6(2){:}S_3$ has a maximal subgroup $2^9{:}(L_3(4){:}S_3)$ of order 61931520. In the present paper, we determine the Fischer-Clifford ...
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Multiplication operators on Banach modules over spectrally separable algebras
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)Let $mathcal{A}$ be a commutative Banach algebra and $mathscr{X}$ be a left Banach $mathcal{A}$-module. We study the set ${rm Dec}_{mathcal{A}}(mathscr{X})$ of all elements in $mathcal{A}$ which induce a decomposable ...
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On the bounds in Poisson approximation for independent geometric distributed random variables
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)The main purpose of this note is to establish some bounds in Poisson approximation for row-wise arrays of independent geometric distributed random variables using the operator method. Some results related to random sums ...
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$mathcal{X}$-injective and $mathcal{X}$-projective complexes
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)Let $mathcal{X}$ be a class of $R$-modules. In this paper, we investigate ;$mathcal{X}$-injective (projective) and DG-$mathcal{X}$-injective (projective) complexes which are generalizations of injective (projective) ...
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Approximate solution of dual integral equations
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)We study dual integral equations which appear in formulation of the potential distribution of an electrified plate with mixed boundary conditions. These equations will be converted to a system of singular integral ...
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On a generalization of condition (PWP)
(Springer and the Iranian Mathematical Society (IMS), 2016-10-01)There is a flatness property of acts over monoids called Condition $(PWP)$ which, so far, has received much attention. In this paper, we introduce Condition GP-$(P)$, which is a generalization of Condition ...



