Browsing by Funding agency "Dirección General de Enseñanza Superior. España"
Now showing items 120 of 71

A digital index theorem [Article]
(World Scientific Publishing, 200111)This paper is devoted to prove a Digital Index Theorem for digital (n − 1)manifolds in a digital space (Rn, f), where f ...

A fixed point theorem for weakly Zamfirescu mappings [Article]
(Elsevier, 20110301)In [13] T. Zamfirescu, Fixed point theorems in metric spaces, Arch. Math. 23 (1972), 292–298. Zamfirescu gave a fixed ...

A Fredholm mapping of index zero [Article]
(Korean Mathematical Society, 2008)Sufficient conditions are given to assert that between any two Banach spaces over K Fredholm mappings share exactly N values in a specific open ball. The proof of the result is constructive and is based upon continuation methods.

A generalization of the Kalman rank condition for timedependent coupled linear parabolic systems [Article]
(EleMath, 200908)In this paper we present a generalization of the Kalman rank condition for linear ordinary differential systems to the ...

A lower bound for the equilateral number of normed spaces [Article]
(American Mathematical Society, 2008)We show that if the BanachMazur distance between an ndimensional normed space X and ℓ n∞ is at most 3/2, then there exist ...

A note on the invariant distribution of a quasibirthanddeath process [Article]
(Institute of Physics, 2011)The aim of this paper is to give an explicit formula of the invariant distribution of a quasibirthanddeath process in ...

A prooftheoretic bound extraction theorem for CAT(κ)spaces [Article]
(Springer, 201706)Starting in 2005, general logical metatheorems have been developed that guarantee the extractability of uniform effective ...

A zero of a proper mapping [Article]
(Casa Cărţii de Ştiinţă ClujNapoca, 2003)Sufficient conditions are given to assert that a differentiable proper Fredholm mapping between Banach spaces over K = R or K = C has a zero. The proof of the result is constructive and is based upon continuation methods.

Arginine catabolism in the cyanobacterium Synechocystis sp. strain PCC 6803 involves the urea cycle and arginase pathway [Article]
(American Society for Microbiology, 2000)Cells of the unicellular cyanobacterium Synechocystis sp. strain PCC 6803 supplemented with micromolar concentrations of ...

Asymptotic behaviour of global solutions to a model of cell invasion [Article]
(World Scientific, 201009)In this paper we analyze a mathematical model focusing on key events of the cells invasion process. Global wellpossedness ...

Asymptotic centers and fixed points for multivalued nonexpansive mappings [Article]
(Maria CurieSkłodowska University, 2004)Let X be a nearly uniformly convex Banach space, C a convex closed bounded subset of X and T : C → 2 C a multivalued ...

À la carte recurrence relations for continuous and discrete hypergeometric functions [Article]
(Sociedad Española de Matemática Aplicada, 201109)We show how, using the constructive approach for special functions introduced by Nikiforov and Uvarov, one can obtain ...

Compact mappings and proper mappings between Banach spaces that share a value [Article]
(Bulgarian Academy of Sciences, 2000)Sufficient conditions are given to assert that differentiable compact mappings and differentiable proper mappings between ...

Conservation of Spatial Memory Function in the Pallial Forebrain of Reptiles and RayFinned Fishes [Article]
(Society of Neuroscience, 2002)The hippocampus of mammals and birds is critical for spatial memory. Neuroanatomical evidence indicates that the medial ...

Continuous division of differential operators [Article]
(Association des Annales de l'Institut Fourier, 2001)In this paper, we give a new proof of the continuity of division by differential operators with analytic coefficients, ...

Density of the set of renormings in c0 without asymptotically isometric copies of c0 and failing to have the fixed point property [Article]
(Casa Cărţii de Ştiinţă ClujNapoca, 2013)It is proved that the family of all equivalent norms in c0 without asymptotically isometric copies of c0 and failing to have the fixed point property is dense in the set of all renormings of c0.

Digital homotopy with obstacles [Article]
(Elsevier, 20040430)As a sequel of [4] Ayala, R., E. Dom´ıguez, A. R. Franc´es and A. Quintero, Homotopy in Digital Spaces, Discrete and Applied ...

Distribution of zeros of discrete and continuous polynomials from their recurrence relation [Article]
(Elsevier, 20020525)The hypergeometric polynomials in a continous or a discrete variable, whose canonical forms are the socalled classical ...

Does Kirk’s theorem hold for multivalued nonexpansive mappings? [Article]
(Springer Open, 2010)Fixed Point Theory for multivalued mappings has many useful applications in Applied Sciences, in particular, in Game Theory ...

Fixed point theorems for multivalued nonexpansive mappings satisfying inwardness conditions [Article]
(Elsevier, 20040301)Let X be a Banach space whose characteristic of noncompact convexity is less than 1 and satisfies the nonstrict Opial ...