Listar Artículos (Instituto de Matemáticas de la Universidad de Sevilla (Antonio de Castro Brzezicki)) por título
Mostrando ítems 79-98 de 105
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[S]-linear and convex structures in function families
(Elsevier, 2019-10-15)In this paper, the notion of [S]-lineability (originally coined by Vladimir I. Gurariy) is introduced and developed in a ...
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Selection of time instants and intervals with Support Vector Regression for multivariate functional data
(PERGAMON-ELSEVIER SCIENCE LTD, 2020-07-19)When continuously monitoring processes over time, data is collected along a whole period, from which only certain time ...
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Sharp estimates of the one-dimensional boundary control cost for parabolic systems and application to the N-dimensional boundary null controllability in cylindrical domains
(Society for Industrial and Applied Mathematics, 2014)In this paper we consider the boundary null controllability of a system of n parabolic equations on domains of the form Ω ...
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Some examples of compact composition operators on H2
(Elsevier, 2008-12-01)We construct, in an essentially explicit way, various composition operators on H2 and study their compactness or their ...
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Some new properties of composition operators associated with lens maps
(Springer, 2013-05)We give examples of results on composition operators connected with lens maps. The first two concern the approximation ...
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Some new thin sets of integers in harmonic analysis
(Springer, 2002-12)We randomly construct various subsets A of the integers which have both smallness and largeness properties. They are small ...
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Some revisited results about composition operators on Hardy spaces
(European Mathematical Society, 2012)We generalize, on one hand, some results known for composition operators on Hardy spaces to the case of Hardy-Orlicz spaces ...
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Sparsity in optimal randomized classification trees
(ELSEVIER SCIENCE BV, 2019-12-16)Decision trees are popular Classification and Regression tools and, when small-sized, easy to interpret. Traditionally, a ...
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Spotting Key Members in Networks: Clustering-Embedded Eigenvector Centrality
(IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2020-11-03)Identifying key members in a social network is critical to understand the underlying system behavior. Whereas there are ...
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Stability of solitary waves in the nonlinear Dirac equation with arbitrary nonlinearity
(American Physical Society, 2014)We consider the nonlinear Dirac equation in 1 + 1 dimension with scalar-scalar self interaction g2κ+1(Ψ¯¯¯Ψ)κ+1 and with ...
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Structural aspects of the non-uniformly continuous functions and the unbounded functions within C(X)
(Elsevier, 2019-04-01)We prove in this paper that if a metric space supports a real continuous function which is not uniformly continuous then, ...
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Subspaces of frequently hypercyclic functions for sequences of composition operators.
(Springer, 2019-02)In this paper, a criterion for a sequence of composition operators defined on the space of holomorphic functions in a ...
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The canonical injection of the Hardy-Orlicz space HΨ into the Bergman–Orlicz space BΨ
(Polish Academy of Sciences, Institute of Mathematics, 2011)We study the canonical injection from the Hardy-Orlicz space HΨ into the Bergman–Orlicz space BΨ..
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The fixed point property and unbounded sets in CAT(0) spaces
(Elsevier, 2013-12-15)In this work we study the fixed point property for nonexpansive self-mappings defined on convex and closed subsets of a ...
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The Markovian arrival process: A statistical model for daily precipitation amounts
(ELSEVIER SCIENCE BV, 2013-12-21)The Markovian arrival process (MAP) is a stochastic process that allows for modeling dependent and non-exponentially ...
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The soft-margin Support Vector Machine with ordered weighted average
(Elsevier, 2021)This paper deals with a cost sensitive extension of the standard Support Vector Machine (SVM) using an ordered weighted ...
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Thin sets of integers in Harmonic analysis and p-stable random Fourier series
(Springer, 2011-06)We investigate the behavior of some thin sets of integers defined through random trigonometric polynomial when one replaces ...
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Threshold robustness in discrete facility location problems: a bi-objective approach
(Springer, 2015-04-24)The two best studied facility location problems are the p-median problem and the uncapacitated facility location problem ...
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Torsion of rational elliptic curves over cubic fields
(Rocky Mountain Mathematics Consortium, 2016)Let E be an elliptic curve defined over Q. We study the relationship between the torsion subgroup E(Q)tors and the torsion ...
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Two results on composition operators on the Dirichlet space
(Elsevier, 2015-06-15)We show that the decay of approximation numbers of compact composition operators on the Dirichlet space D can be as slow ...