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Mostrando ítems 321-330 de 509
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Asymptotically regular mappings in modular function spaces
(Japanese Association of Mathematical Sciences, 2001)
Let ρ be a modular function satisfying a ∆2-type condition and Lρ the corresponding modular space. The main result in this paper states that if C is a ρ-bounded and ρ-a.e sequentially compact subset of Lρ and T : C → C is ...
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New maximal functions and multiple weights for the multilinear Calderón-Zygmund theory
(Elsevier, 2009-03-01)
A multi(sub)linear maximal operator that acts on the product of m Lebesgue spaces and is smaller that the m-fold product of the Hardy-Littlewood maximal function is studied. The operator is used to obtain a precise control ...
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Turning waves and breakdown for incompressible flows
(National Academy of Sciences, 2011-03-22)
We consider the evolution of an interface generated between two immiscible, incompressible, and irrotational fluids. Specifically we study the Muskat and water wave problems. We show that starting with a family of initial ...
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Rogers-Shephard inequality for log-concave functions
(Elsevier, 2016-12-01)
In this paper we prove different functional inequalities extending the classical Rogers-Shephard inequalities for convex bodies. The original inequalities provide an optimal relation between the volume of a convex body and ...
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Universal functions with small derivatives and extremely fast growth
(De Gruyter, 2002-03)
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On characterizations of classical polynomials
(Elsevier, 2006-11-01)
It is well known that the classical families of Jacobi, Laguerre, Hermite, and Bessel polynomials are characterized as eigenvectors of a second order linear differential operator with polynomial coefficients, Rodrigues ...
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A characterization of 3D steady Euler flows using commuting zero-flux homologies
(Cambridge, 2020-02-10)
We characterize, using commuting zero-flux homologies, those volumepreserving vector fields on a 3-manifold that are steady solutions of the Euler equations for some Riemannian metric. This result extends Sullivan’s ...
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Polinomios ortogonales: historia y aplicaciones
(Sociedad Española de Matemática Aplicada, 2001)
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An Lp-Functional Busemann–Petty Centroid Inequality
(Oxford Academic, 2020-01-23)
For a convex body K⊂Rn , let ΓpK be its Lp -centroid body. The Lp -Busemann–Petty centroid inequality states that vol(ΓpK)≥vol(K) , with equality if and only if K is an ellipsoid centered at the origin. In this ...
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Two hyperbolic Schwarz lemmas
(Cambridge University Press, 2002-08)
In this paper, a sharp version of the Schwarz–Pick Lemma for hyperbolic derivatives is provided for holomorphic selfmappings on the unit disk with fixed multiplicity for the zero at the origin, hence extending a recent ...