Listar Análisis Matemático por agencia financiadora "Ministerio de Ciencia e Innovación (MICIN). España"
Mostrando ítems 1-20 de 22
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A Bp condition for the strong maximal function
(American Mathematical Society, 2014-11)A strong version of the Orlicz maximal operator is introduced and a natural Bp condition for the rectangle case is defined ...
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A dynamical characterization of sub-Arakelian subsets
(Elsevier, 2013-09-15)We are going to characterize those sets which can be covered by an Arakelian set in terms of dynamical properties of entire ...
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A local spectral condition for strong compactness with some applications to bilateral weighted shifts
(American Mathematical Society, 2014-01)An algebra of bounded linear operators on a Banach space is said to be strongly compact if its unit ball is precompact ...
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A new quantitative two weight theorem for the Hardy-Littlewood maximal operator
(American Mathematical Society, 2015-02)A quantitative two weight theorem for the Hardy-Littlewood maximal operator is proved improving the known ones. As a ...
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A proof of a trigonometric inequality. A glimpse inside the mathematical kitchen
(2011-09)We prove the inequality ∞ ∑ k=1(−1) k+1 rk cos kφ k+2 < ∞ ∑ k=1 (−1) k+1 rk k+2 for 0 < r 1 and 0 < φ < π . For the ...
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A test for the Riemann hypotesis
(Adam Mickiewicz University, 2008-09)We prove that the Riemann Hypothesis holds if and only if I = Z +∞ 1 ˘ Π(x) − Li(x) ¯2 x −2 dx < +∞ with I = J, where J ...
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Absence of splash singularities for surface quasi-geostrophic sharp fronts and the Muskat problem
(National Academy of Sciences (United States), 2014)In this paper, for both the sharp front surface quasi-geostrophic equation and the Muskat problem, we rule out the “splash ...
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Compact composition operators on the Dirichlet space and capacity of sets of contact points
(Elsevier, 2013-02-15)We prove several results about composition operators on the Dirichlet space D⁎. For every compact set K⊆∂D of logarithmic ...
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Diversities, hyperconvexity and fixed points
(Elsevier, 2014-01)Diversities have been recently introduced as a generalization of metrics for which a rich tight span theory could be stated. ...
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Exponential decay estimates for singular integral operators
(Springer, 2013-12)The following subexponential estimate for commutators is proved |{x ∈ Q : |[b, T]f(x)| > tM2 f(x)}| ≤ c e− √ α tkbkBMO ...
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Hardy-Littlewood inequalities for norms of positive operators on sequence spaces
(Elsevier, 2013-01-01)We consider estimates of Hardy and Littlewood for norms of operators on sequence spaces, and we apply a factorization result of Maurey to obtain improved estimates and simplified proofs for the special case of a positive operator.
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Infinitesimal Carleson property for weighted measures induced by analytic self-maps of the unit disk
(Springer, 2013-08)We prove that, for every α>−1, the pull-back measure φ(Aα) of the measure dAα(z)=(α+1)(1−|z|2)αdA(z), where A is the ...
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On approximation numbers of composition operators
(Elsevier, 2012-04)We show that the approximation numbers of a compact composition operator on the weighted Bergman spaces Bα of the unit ...
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On the Muskat problem: global in time results in 2D and 3D
(Johns Hopkins University Press, 2016-12)This paper considers the three dimensional Muskat problem in the stable regime. We obtain a conservation law which provides ...
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Optimal exponents in weighted estimates without examples
(International Press, 2015)t. We present a general approach for proving the optimality of the exponents on weighted estimates. We show that if an ...
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Sharp bounds for general commutators on weighted Lebesgue spaces
(American Mathematical Society, 2012)We show that if a linear operator T is bounded on weighted Lebesgue space L2(w) and obeys a linear bound with respect to ...
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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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Spectral methods for bivariate Markov processes with diffusion and discrete components and a variant of the Wright-Fisher model
(Elsevier, 2012-09-01)The aim of this paper is to study differential and spectral properties of the infinitesimal operator of two dimensional ...
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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..