مرور Volume 38, Issue 1 بر اساس تاریخ انتشار

در حال نمایش موارد 1 - 15 از 15

  • Non-regularity of multiplications for general measure algebras 

    Laali, J.؛ Ettefagh, M. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    Let $fM(X)$ be the  space of  all finite regular Borel measures on $X$. A general measure algebra is a subspace  of$fM(X)$,which is an $L$-space and has a multiplication preserving the probability ...

  • Ranks of the common solution to some quaternion matrix equations with applications 

    Wang, Q.؛ Yu, S. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We derive the formulas of the maximal andminimal ranks of four real matrices $X_{1},X_{2},X_{3}$ and $X_{4}$in common solution $X=X_{1}+X_{2}i+X_{3}j+X_{4}k$ to quaternionmatrix equations $A_{1}X=C_{1}, ...

  • On the existence and uniqueness of solution of initial value problem for fractional order differential equations on time scales 

    Ahmadkhanlu, A.؛ Jahanshahi, M. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    n this paper, at first the  concept of Caputo fractionalderivative is generalized on time scales. Then the fractional orderdifferential equations are introduced on time scales. Finally,sufficient and ...

  • Extensions of strongly alpha-reversible rings 

    Zhao, L.؛ Zhu, X. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We introduce the notion ofstrongly $alpha$-reversible rings which is a strong version of$alpha$-reversible rings, and investigate its properties. We firstgive an example to show that strongly reversible ...

  • Function spaces of Rees matrix semigroups 

    Rahimi, H. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We characterize function spaces of Rees matrixsemigroups. Then we study these spaces by using the topologicaltensor product technique.

  • On co-Noetherian dimension of rings 

    Haghany, A.؛ Vedadi, M. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We define and studyco-Noetherian dimension of rings for which the injective envelopeof simple modules have finite Krull-dimension. This  is a Moritainvariant dimension that measures how far the ring is ...

  • Lie triple derivation algebra of Virasoro-like algebra 

    Wang, H.؛ Jing, N.؛ Li, Q. G. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    Let $mathfrak{L}$ be the Virasoro-like algebra and $mathfrak{g}$ itsderived algebra, respectively. We investigate the structure of the Lie triplederivation algebra of $mathfrak{L}$ and $mathfrak{g}$. We ...

  • Bivariate mean value interpolation on circles of the same radius 

    Rahsepar Fard, Kh. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We consider   bivariate  mean-value interpolationproblem, where the integrals over circles are interpolation data. In this case the problem  is described  over   circles of the same radius and with  centers are ...

  • Topological centers of the n-th dual of module actions 

    Haghnejad Azar, K.؛ Riazi, A. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We study the topological centers of $nth$ dual of Banach $mathcal{A}$-modules and we extend some propositions from Lau and "{U}lger into $n-th$ dual of Banach $mathcal{A}-modules$ where $ngeq 0$ is even number. Let   ...

  • On the stability of generalized derivations on Banach algebras 

    Ansari-Piri, E.؛ Anjidani, E. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We investigate the stability of generalizedderivations on Banach algebras with a bounded central approximateidentity. We show that every approximate generalized derivation inthe sense of Rassias, is an ...

  • Compact composition operators on certain analytic Lipschitz spaces 

    Mahyar, H.؛ Sanatpour, A. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We investigate compact composition operators on ceratin Lipschitzspaces of analytic functions on the closed unit disc of the plane.Our approach also leads to some results about compositionoperators on ...

  • Construction of a class of trivariate nonseparable compactly supported wavelets with special dilation matrix 

    Lan, L.؛ Zhengxing, C.؛ Yongdong, H. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We present a method for  the construction of compactlysupported $left (begin{array}{lll}1 & 0 & -11 & 1 & 0 1 &  0 & 1end{array}right )$-wavelets  under a mild condition. Wavelets ...

  • On Heyting algebras and dual BCK-algebras 

    Yon, Y.؛ Kim, K. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    A Heyting algebra is a distributive lattice with implication and a dual $BCK$-algebra is an algebraic system having as models logical systems equipped with implication. The aim of this paper is to investigate the relation ...

  • On topological transitive maps on operator algebras 

    Rezaei, H. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    We consider the transitive linear maps on the operator algebra $B(X)$for a separable Banach space $X$. We show if a bounded linear map is norm transitive on $B(X)$,then it must be hypercyclic with strong operator ...

  • On a decomposition of Hardy--Hilbert's type inequality 

    Lashkaripour, R.؛ Moazzen, A. (Springer and the Iranian Mathematical Society (IMS), 2012-04-01)
    In this paper, two pairs of new inequalities are given, which decompose two Hilbert-type inequalities.