A Liouville-type theorem for very weak solutions of nonlinear partial differential equations.
Alberto Fiorenza (1997)
Collectanea Mathematica
José L. Rubio de Francia (1985)
Revista Matemática Iberoamericana
Per Sjölin, Elena Perstini (2000)
The journal of Fourier analysis and applications [[Elektronische Ressource]]
Caroline Sweezy (2007)
Annales Polonici Mathematici
Let L be a strictly elliptic second order operator on a bounded domain Ω ⊂ ℝⁿ. Let u be a solution to in Ω, u = 0 on ∂Ω. Sufficient conditions on two measures, μ and ν defined on Ω, are established which imply that the norm of |∇u| is dominated by the norms of and . If we replace |∇u| by a local Hölder norm of u, the conditions on μ and ν can be significantly weaker.
Nick Dungey (2008)
Studia Mathematica
We establish the boundedness in spaces, 1 < q ≤ 2, of a “vertical” Littlewood-Paley-Stein operator associated with a reversible random walk on a graph. This result extends to certain non-reversible random walks, including centered random walks on any finitely generated discrete group.
Charles N. Moore, Xiaojing Zhang (2014)
Studia Mathematica
We prove a lower bound in a law of the iterated logarithm for sums of the form where f satisfies certain conditions and the satisfy the Hadamard gap condition .
Peretz, Ronen (1992)
International Journal of Mathematics and Mathematical Sciences
Michał Wojciechowski (2000)
Studia Mathematica
It is proved that if satisfies a suitable integral condition of Marcinkiewicz type then m is a Fourier multiplier on the space on the product domain . This implies an estimate of the norm of the multiplier transformation of m on as p→1. Precisely we get . This bound is the best possible in general.
Anna Kamont, Paul F. X. Müller (2006)
Studia Mathematica
We prove unconditionality of general Franklin systems in , where X is a UMD space and where the general Franklin system corresponds to a quasi-dyadic, weakly regular sequence of knots.
H.-Q. Bui, M. Paluszyński, M. Taibleson (1996)
Studia Mathematica
We give characterizations of weighted Besov-Lipschitz and Triebel-Lizorkin spaces with weights via a smooth kernel which satisfies “minimal” moment and Tauberian conditions. The results are stated in terms of the mixed norm of a certain maximal function of a distribution in these weighted spaces.
W. Jurkat, J. Troutman (1981)
Studia Mathematica
Albert Llamosí (1980)
Stochastica
A systematic method for the calculus of Bernstein's polynomial is described. It consists of reducing the problem to a homogeneous linear system of equations that may be constructed by fixed rules. Several problems about its computer implementation are discussed.
Mischa Cotlar, Cora Sadowsky (1975)
Studia Mathematica
Francisco Javier González Vieli (2011)
Commentationes Mathematicae Universitatis Carolinae
Using Bochner-Riesz means we get a multidimensional sampling theorem for band-limited functions with polynomial growth, that is, for functions which are the Fourier transform of compactly supported distributions.
Mordechay B. Levin (2013)
Colloquium Mathematicae
We prove the central limit theorem for the multisequence where , are reals, are partially hyperbolic commuting s × s matrices, and x is a uniformly distributed random variable in . The main tool is the S-unit theorem.
Sun, Baoju (2007)
Journal of Inequalities and Applications [electronic only]
G. Blower (1990)
Studia Mathematica
Hans Triebel (1979)
Banach Center Publications
Nakhle Asmar, Florence Newberger, Saleem Watson (2006)
Colloquium Mathematicae
We define a new type of multiplier operators on , where is the N-dimensional torus, and use tangent sequences from probability theory to prove that the operator norms of these multipliers are independent of the dimension N. Our construction is motivated by the conjugate function operator on , to which the theorem applies as a particular example.
William Connett, Alan Schwartz (1975)
Studia Mathematica