Listar Artículos (Análisis Matemático) por agencia financiadora "Dirección General de Investigación Científica y Técnica (DGICYT). España"
Mostrando ítems 1-20 de 25
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A Birkhoff theorem for Riemann surfaces
(Rocky Mountain Mathematics Consortium, 1998)A classical theorem of Birkhoff asserts that there exists an entire function f such that the sequence of function {/(z + ...
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A geometrical coefficient implying the fixed point property and stability results
(University of Houston, 1996)In this paper we define a new geometric constant M(X) in Banach spaces such that X has the fixed point property for ...
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Asymptotically nonexpansive mappings in modular function spaces
(Elsevier, 2002-01-15)In this paper, we prove that if ρ is a convex, σ-finite modular function satisfying a ∆2-type condition, C a convex, ...
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Banach spaces of hypercyclic vectors
(University of Michigan, 1996) -
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Concentration of the distance in finite dimensional normed spaces
(University College London, Faculty of Mathematical and Physical Sciences, Department of Mathematics, 1998-12)We prove that in every finite dimensional normed space, for “most” pairs (x, y) of points in the unit ball, ∥x − y∥ is ...
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Convergence in mean of weighted sums of {an,k}-compactly uniformly integrable random elements in Banach spaces
(Hindawi, 1997)The convergence in mean of a weighted sum ka.k(Xk EXk) of random elements in a separable Banach space is studied under a ...
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Endpoint estimates for commutators of singular integral operators
(Elsevier, 1995-02-15)We prove endpoint estimates for commutatotrs of singular integrals with BMO functions. We first show that they satisfy ...
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Fixed points and approximate fixed points in product spaces
(The Mathematical Society of the Republic of China, 2001-06)The paper deals with the general theme of what is known about the existence of fixed points and approximate fixed points ...
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On the modification of classical orthogonal polynomials: the symmetric case
(Springer, 1998-03)We consider the modifcations of the monic Hermite and Gegenbauer polynomials via the addition of one point mass at the ...
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Potential operators, maximal functions, and generalizations of A∞
(Springer, 2003-08)We derive weighted norm estimates which relate integral operators of potential type (fractional integrals) to corresponding ...
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Qualitative and quantitative properties for the space ℓp,q
(University of Houston, 1996)The space lp,q is simply the space lp but renormed by 1 Ixlp,q =(11x+llg + IIx-IIg);, ß E where II'[Ip is the usual lp ...
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Remarks on multivalued nonexpansive mappings
(Soochow University, 1995-01)Convergence of fixed point sets of multivalued nonexpansive mappings is studied under both the Mosco and Hausdorff senses. ...
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Riesz's theorem for orthogonal matrix polynomials
(Springer, 1999-01)We describe the image through the Stieltjes transform of the set of solutions V of a matrix moment problem. We extend ...
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Sharp Lp-weighted Sobolev inequalities
(Association des Annales de l'Institut Fourier, 1995) -
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Sharp weighted inequalities for the vector-valued maximal function
(American Mathematical Society, 2000)We prove in this paper some sharp weighted inequalities for the vector-valued maximal function Mq of Fefferman and Stein ...
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Some geometric properties concerning fixed point theory
(Universidad Complutense de Madrid, 1996)The Fixed Point Theory for nonexpansive mappings is strongly based upon the geometry of the ambient Banach space. In section ...
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Strongly compact algebras
(Real Academia de Ciencias Exactas, Fisicas y Naturales, 2006)An algebra of bounded linear operators on a Hilbert space is said to be strongly compact if its unit ball is relatively ...
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Structure of the fixed point set and common fixed points of asymptotically nonexpansive mappings
(American Mathematical Society, 2001)Let X be a Banach space, C a weakly compact convex subset of X and T : C → C an asymptotically nonexpansive mapping. Under ...
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The fixed-point property in Banach spaces containing a copy of c0
(Hindawi, 2003)We prove that every Banach space containing an isomorphic copy of c0 fails to have the fixed-point property for asymptotically ...