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We revisit Hardy's inequality in the scope of regular Dirichlet forms following an analytical method. We shall give an alternative necessary and sufficient condition for the occurrence of Hardy's inequality. A special emphasis will be given…

Functional Analysis · Mathematics 2009-04-02 Nedra Belhadjrhouma , Ali BenAmor

We obtain inequalities for the Riesz means for the discrete spectrum of a class of self-adjoint compact integral operators. Such bounds imply some inequalities for the counting function of the Dirichlet boundary problem for the Laplace…

Analysis of PDEs · Mathematics 2019-06-21 Ari Laptev , Andrei Velicu

For a Kahler manifold X, we study a space of test functions W* which is a complex version of H1. We prove for W* the classical results of the theory of Dirichlet spaces: the functions in W* are defined up to a pluripolar set and the…

Complex Variables · Mathematics 2019-12-18 Gabriel Vigny

We consider a general class of metric measure spaces equipped with a regular Dirichlet form and then provide a lower bound on the hitting time probabilities of the associated Hunt process. Using these estimates we establish (i) a…

Probability · Mathematics 2018-10-30 Anup Biswas , Janna Lierl

We reformulate the inequalities among self-closeness numbers of spaces in cofibrations making use of homology dimension and show that the self-closeness number of a space is less than or equal to the homology dimension of the space. Then we…

Algebraic Topology · Mathematics 2019-10-25 Nobuyuki Oda , Toshihiro Yamaguchi

We explore some of the special features with respect to Bredon cohomology of groups having all its finite subgroups either nilpotent or p-groups or cyclic p-groups. We get some results on dimensions and also a formula for the equivariant…

Group Theory · Mathematics 2013-03-13 Conchita Martínez-Pérez

We prove the existence of the O-U Dirichlet form and the damped O-U Dirichlet form on path space over a general non-compact Riemannian manifold which is complete and stochastically complete. We show a weighted log-Sobolev inequality for the…

Probability · Mathematics 2013-07-30 Xin Chen , Bo Wu

After a brief introduction to the Painlev\'{e} property for ordinary differential equations, we present a concise review of the various methods of singularity analysis which are commonly referred to as Painlev\'{e} tests. The tests are…

Exactly Solvable and Integrable Systems · Physics 2008-10-22 Andrew N. W. Hone

We establish the existence and uniqueness of limits at infinity along infinite curves outside a zero modulus family for functions in a homogeneous Sobolev space under the assumption that the underlying space is equipped with a doubling…

Functional Analysis · Mathematics 2023-10-19 Pekka Koskela , Khanh Nguyen

We prove a Poincar\'e, and a general Sobolev type inequalities for functions with compact support defined on a $k$-rectifiable varifold $V$ defined on a complete Riemannian manifold with positive injectivity radius and sectional curvature…

Metric Geometry · Mathematics 2020-01-28 Julio Cesar Correa Hoyos

Contains a further development of the V.G. Maz'ya concept of polynomial capacities.A different different approach is given together with new results. The primary application is for Hardy inequalities. This is treated in a later report. Here…

Analysis of PDEs · Mathematics 2007-05-23 Andreas Wannebo

Using the general theory of [10] ( hep-th 9412058 ), quantum Poincar\'e groups (without dilatations) are described and investigated. The description contains a set of numerical parameters which satisfy certain polynomial equations. For most…

High Energy Physics - Theory · Physics 2011-07-18 P. Podles , S. L. Woronowicz

The Perron method for solving the Dirichlet problem for $p$-harmonic functions is extended to unbounded open sets in the setting of a complete metric space with a doubling measure supporting a $p$-Poincar\'e inequality, $1<p<\infty$. The…

Analysis of PDEs · Mathematics 2019-06-07 Daniel Hansevi

In this paper, we prove interior Poincar{\'e} and Sobolev inequalities in Euclidean spaces and in Heisenberg groups, in the limiting case where the exterior (resp. Rumin) differential of a differential form is measured in L 1 norm. Unlike…

Differential Geometry · Mathematics 2019-02-14 Annalisa Baldi , Bruno Franchi , Pierre Pansu

We provide an introduction to Dirichlet forms on discrete spaces and study their global properties such as recurrence, stochastic completeness and regularity of the Neumann form. In this setting we compare the notion of a recurrent…

Functional Analysis · Mathematics 2016-09-05 Marcel Schmidt

Pisier's inequality is central in the study of normed spaces and has important applications in geometry. We provide an elementary proof of this inequality, which avoids some non-constructive steps from previous proofs. Our goal is to make…

Functional Analysis · Mathematics 2020-09-24 Siddharth Iyer , Anup Rao , Victor Reis , Thomas Rothvoss , Amir Yehudayoff

The aim of this work is to study comparability of nonlocal Dirichlet forms. We provide sufficient conditions on the kernel for local and global comparability. As an application we prove a-priori estimates in H\"{o}lder spaces for solutions…

Analysis of PDEs · Mathematics 2011-10-03 Bartłomiej Dyda , Moritz Kassmann

The unicity of real Picard-Vessiot fields for differential modules over a real differential field is proved.

Commutative Algebra · Mathematics 2013-02-06 Teresa Crespo , Zbigniew Hajto , Marius van der Put

In this paper we give a geometric condition which ensures that $(q,p)$-Poincar\'e-Sobolev inequalities are implied from generalized $(1,1)$-Poincar\'e inequalities related to $L^1$ norms in the context of product spaces. The concept of…

Classical Analysis and ODEs · Mathematics 2022-05-11 Maria Eugenia Cejas , Carolina Mosquera , Carlos Pérez , Ezequiel Rela

We consider sharp inequalities for Bergman spaces of the unit disc, establishing analogues of the inequality in Carleman's proof of the isoperimetric inequality and of Weissler's inequality for dilations. By contractivity and a standard…

Functional Analysis · Mathematics 2018-12-18 Frédéric Bayart , Ole Fredrik Brevig , Antti Haimi , Joaquim Ortega-Cerdà , Karl-Mikael Perfekt