Volume 41, Issue 2
مرور بر اساس
ارسال های اخیر
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Explicit multiple singular periodic solutions and singular soliton solutions to KdV equation
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)Based on some stationary periodic solutions and stationary soliton solutions, one studies the general solution for the relative lax system, and a number of exact solutions to the Korteweg-de Vries (KdV) equation are first ...
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Application of measures of noncompactness to infinite system of linear equations in sequence spaces
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)G. Darbo [Rend. Sem. Math. Univ. Padova, 24 (1955) 84--92] used the measure of noncompactness to investigate operators whose properties can be characterized as being intermediate between those of contraction and compact ...
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Random coincidence point results for weakly increasing functions in partially ordered metric spaces
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)The aim of this paper is to establish random coincidence point results for weakly increasing random operators in the setting of ordered metric spaces by using generalized altering distance functions. Our results present ...
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On difference sequence spaces defined by Orlicz functions without convexity
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)In this paper, we first define spaces of single difference sequences defined by a sequence of Orlicz functions without convexity and investigate their properties. Then we extend this idea to spaces of double sequences ...
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On constant products of elements in skew polynomial rings
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)Let $R$ be a reversible ring which is $alpha$-compatible for an endomorphism $alpha$ of $R$ and $f(X)=a_0+a_1X+cdots+a_nX^n$ be a nonzero skew polynomial in $R[X;alpha]$. It is proved that if there exists a nonzero skew ...
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On certain subclasses of univalent $p$-harmonic mappings
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)Inthis paper, the main aim is to introduce the class $mathcal{U}_p(lambda,alpha,beta,k_0)$ of $p$-harmonic mappings togetherwith its subclasses $mathcal{U}_p(lambda,alpha,beta,k_0)capmathcal {T}_p$ ...
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Uncountably many bounded positive solutions for a second order nonlinear neutral delay partial difference equation
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)In this paper we consider the second order nonlinear neutral delay partial difference equation $Delta_nDelta_mbig(x_{m,n}+a_{m,n}x_{m-k,n-l}big)+ fbig(m,n,x_{m-tau,n-sigma}big)=b_{m,n}, mgeq m_{0},,
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Bulletin of the Iranian Mathematical Society
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)
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Stochastic differential inclusions of semimonotone type in Hilbert spaces
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)In this paper, we study the existence of generalized solutions for the infinite dimensional nonlinear stochastic differential inclusions $dx(t) in F(t,x(t))dt +G(t,x(t))dW_t$ in which the multifunction $F$ is semimonotone ...
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Periodic solutions of fourth-order delay differential equation
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)In this paper the periodic solutions of fourth order delay differential equation of the form $ddddot{x}(t)+adddot{x}(t)+f(ddot{x}(t-tau(t)))+g(dot{x}(t-tau(t)))+h({x}(t-tau(t)))=p(t)$ is investigated. Some new positive ...
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On group equations
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)Suppose $f$ is a map from a non-empty finite set $X$ to a finite group $G$. Define the map $zeta^f_G: Glongrightarrow mathbb{N}cup {0}$ by $gmapsto |f^{-1}(g)|$. In this article, we show that for a suitable choice of $f$, ...
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Sinc-Galerkin method for solving a class of nonlinear two-point boundary value problems
(Springer and the Iranian Mathematical Society (IMS), 2015-04-01)In this article, we develop the Sinc-Galerkin method based on double exponential transformation for solving a class of weakly singular nonlinear two-point boundary value problems with nonhomogeneous boundary conditions. ...
