Volume 41, Issue 4
مرور بر اساس
ارسال های اخیر
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On the convergence of solutions to a difference inclusion on Hadamard manifolds
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)The aim of this paper is to study the convergence of solutions of the following second order difference inclusion begin{equation*}begin{cases}exp^{-1}_{u_i}u_{i+1}+theta_i exp^{-1}_{u_i}u_{i-1} in ...
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Domain of attraction of normal law and zeros of random polynomials
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)Let$ P_{n}(x)= sum_{i=0}^{n} A_{i}x^{i}$ be a random algebraicpolynomial, where $A_{0},A_{1}, cdots $ is a sequence of independent random variables belong to the domain of attraction of the normal ...
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Matrix representation of a sixth order Sturm-Liouville problem and related inverse problem with finite spectrum
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In this paper, we find matrix representation of a class of sixth order Sturm-Liouville problem (SLP) with separated, self-adjoint boundary conditions and we show that such SLP have finite spectrum. Also for a given ...
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On the dual of certain locally convex function spaces
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In this paper, we first introduce some function spaces, with certain locally convex topologies, closely related to the space of real-valued continuous functions on $X$, where $X$ is a $C$-distinguished topological space. ...
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Binomial edge ideals and rational normal scrolls
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)Let $X=left( begin{array}{llll} x_1 & ldots & x_{n-1}& x_n x_2& ldots & x_n & x_{n+1} end{array}right)$ be the Hankel matrix of size $2times n$ and let $G$ be a closed graph on the vertex set $[n].$ We study ...
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Solvable Lie algebras with $N(R_n,m,r)$ nilradical
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In this paper, we classify the indecomposable non-nilpotent solvable Lie algebras with $N(R_n,m,r)$ nilradical,by using the derivation algebra and the automorphism group of $N(R_n,m,r)$.We also prove that these solvable ...
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Convergence analysis of the global FOM and GMRES methods for solving matrix equations $AXB=C$ with SPD coefficients
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In this paper, we study convergence behavior of the global FOM (Gl-FOM) and global GMRES (Gl-GMRES) methods for solving the matrix equation $AXB=C$ where $A$ and $B$ are symmetric positive definite (SPD). We present ...
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Analytic extension of a $N$th roots of $M$-hyponormal operator
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In this paper, we study some properties of analytic extension of a $n$th roots of $M$-hyponormal operator. We show that every analytic extension of a $n$th roots of $M$-hyponormal operator is subscalar of order $2k+2n$. ...
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On residuated lattices with universal quantifiers
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)We consider properties of residuated lattices with universal quantifier and show that, for a residuated lattice $X$, $(X, forall)$ is a residuated lattice with a quantifier if and only if there is an $m$-relatively complete ...
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Suzuki-type fixed point theorems for generalized contractive mappings that characterize metric completeness
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)Inspired by the work of Suzuki in [T. Suzuki, A generalized Banach contraction principle that characterizes metric completeness, Proc. Amer. Math. Soc. 136 (2008), 1861--1869], we prove ...
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Characterization of Lie higher Derivations on $C^{*}$-algebras
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)Let $mathcal{A}$ be a $C^*$-algebra and $Z(mathcal{A})$ the center of $mathcal{A}$. A sequence ${L_{n}}_{n=0}^{infty}$ of linear mappings on $mathcal{A}$ with $L_{0}=I$, where $I$ is the identity mapping on ...
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Weak differentiability of solutions to SDEs with semi-monotone drifts
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In this work we prove Malliavin differentiability for the solution to an SDE with locally Lipschitz and semi-monotone drift. To prove this formula, we construct a sequence of SDEs with globally Lipschitz drifts and ...
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On the Fischer-Clifford matrices of the non-split extension $2^6{{}^{cdot}}G_2(2)$
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)The group $2^6{{}^{cdot}} G_2(2)$ is a maximal subgroup of the Rudvalis group $Ru$ of index 188500 and has order 774144 = $2^{12}.3^3.7$. In this paper, we construct the character table of the group $2^6{{}^{cdot}} G_2(2)$ ...
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On SPAP-rings
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In this paper we focus on a special class of commutative local rings called SPAP-rings and study the relationship between this class and other classes of rings. We characterize the structure of modules and especially, ...
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Some numerical radius inequalities with positive definite functions
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)Using several examples of positive definite functions, some inequalities for the numerical radius of matrices are investigated. Also, some open problems are stated.
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Classes of admissible functions associated with certain integral operators applied to meromorphic functions
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In the present paper, by making use of the differential subordination and superordination results of Miller and Mocanu, certain classes of admissible functions are determined so that subordination as well as ...
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Pseudo-almost valuation rings
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)The aim of this paper is to generalize thenotion of pseudo-almost valuation domains to arbitrary commutative rings. It is shown that the classes of chained rings and pseudo-valuation rings are properly contained ...
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Optimal results for a time-fractional inverse diffusion problem under the Hölder type source condition
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)In the present paper we consider a time-fractional inverse diffusion problem, where data is given at $x=1$ and the solution is required in the interval $0
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Spacelike hypersurfaces with constant $S$ or $K$ in de Sitter space or anti-de Sitter space
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)Let $M^n$ be an $n(ngeq 3)$-dimensional complete connected and oriented spacelike hypersurface in a de Sitter space or an anti-de Sitter space, $S$ and $K$ be the squared norm of the second fundamental form and ...
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Hyperinvariant subspaces and quasinilpotent operators
(Springer and the Iranian Mathematical Society (IMS), 2015-08-01)For a bounded linear operator on Hilbert space we define a sequence of the so-called weakly extremal vectors. We study the properties of weakly extremal vectors and show that the orthogonality equation is valid for weakly ...
