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Related papers: Hardy's theorem for compact Lie groups

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In a previous paper, we introduce and study formal manifolds, which generalize smooth manifolds. In this paper, we establish the basic theory of formal Lie groups, which are group objects in the category of formal manifolds. In particular,…

Representation Theory · Mathematics 2026-04-29 Fulin Chen , Binyong Sun , Chuyun Wang

In this paper we show that the Hamiltonian Monte Carlo method for compact Lie groups constructed in \cite{kennedy88b} using a symplectic structure can be recovered from canonical geometric mechanics with a bi-invariant metric. Hence we…

Differential Geometry · Mathematics 2019-03-15 Alessandro Barp

The aim of this note is to prove the algebraic geometry analogue of the Invariant tubular neighborhood theorem which concerns the actions of compact Lie groups on smooth manifolds.

Representation Theory · Mathematics 2007-05-23 M. Boratynski

In this paper a reduction and equivalence theorems for the boundedness of the composition of a quasilinear operator $T$ with the Hardy and Copson operators in weighted Lebesgue spaces are proved. New equivalence theorems are obtained for…

Classical Analysis and ODEs · Mathematics 2015-03-16 Amiran Gogatishvili , Rza Mustafayev

We deal with Dirac operators with external homogeneous magnetic fields. Hardy-type inequalities related to these operators are investigated: for a suitable class of transversal magnetic fields, we prove a Hardy inequality with the same best…

Mathematical Physics · Physics 2016-03-24 Luca Fanelli , Luis Vega , Nicola Visciglia

We discuss the `hd-compactification' of a semi-simple Lie group to a manifold with corners; it is the real analog of the wonderful compactification of deConcini and Procesi. There is a 1-1 correspondence between the boundary faces of the…

Differential Geometry · Mathematics 2019-10-08 Pierre Albin , Panagiotis Dimakis , Richard Melrose , David Vogan

In this paper we generalize a result in [1], showing that an arbitrary Riemannian symmetric space can be realized as a closed submanifold of a covering group of the Lie group defining the symmetric space. Some properties of the subgroups of…

Geometric Topology · Mathematics 2007-05-23 Jinpeng An , Zhengdong Wang

In this note we prove various sharp boundedness results on suitable Hardy type spaces for Riesz transforms of arbitrary order on noncompact symmetric spaces of arbitrary rank.

Functional Analysis · Mathematics 2017-10-05 G. Mauceri , S. Meda , M. Vallarino

In this short note we would like to show that one can use Davies's Hardy inequality to rederive well-known results of Lieb and Rozenblum.

Classical Analysis and ODEs · Mathematics 2022-04-01 Rupert L. Frank , Simon Larson

We characterize group compactifications of discrete groups for which there exists an equivariant retraction onto the boundary. In particular, we prove an equivariant analogue of Brouwer's No-Retraction theorem for large classes of group…

Group Theory · Mathematics 2025-09-15 Yair Hartman , Aranka Hrušková , Mehrdad Kalantar , Tomer Zimhoni

We study Hardy inequalities for antisymmetric functions in three different settings: euclidean space, torus and the integer lattice. In particular, we show that under the antisymmetric condition the sharp constant in Hardy inequality…

Functional Analysis · Mathematics 2024-08-14 Shubham Gupta

A version of Paley-Wiener like theorem for connected, simply connected nilpotent Lie groups is proven.

funct-an · Mathematics 2008-02-03 Vladimir V. Kisil

We discuss Nakamaye's Theorem and its recent extension to compact complex manifolds, together with some applications.

Algebraic Geometry · Mathematics 2019-04-04 Valentino Tosatti

An important, if relatively less well known aspect of the singularity theorems in Lorentzian Geometry is to understand how their conclusions fare upon weakening or suppression of one or more of their hypotheses. Then, theorems with modified…

General Relativity and Quantum Cosmology · Physics 2014-08-20 I. P. Costa e Silva , J. L. Flores

We prove the equivalence between the simplicial Orlicz cohomology and the Orlicz-de Rham cohomology in the case of Lie groups. Since the first one is a quasi-isometry invariant for uniformly contractible simplicial complexes with bounded…

Metric Geometry · Mathematics 2020-06-18 Emiliano Sequeira

We establish a quantum Galois correspondence for compact Lie groups of automorphisms acting on a simple vertex operator algebra.

Quantum Algebra · Mathematics 2007-05-23 C. Dong , G. Mason

We prove a discretized Product Theorem for general simple Lie groups, in the spirit of Bourgain's Discretized Sum-Product Theorem.

Representation Theory · Mathematics 2014-05-09 Nicolas de Saxcé

We give a short proof of a recently established Hardy-type inequality due to Keller, Pinchover, and Pogorzelski together with its optimality. Moreover, we identify the remainder term which makes it into an identity.

Spectral Theory · Mathematics 2022-08-22 David Krejcirik , Frantisek Stampach

We give necessary and sufficient conditions for both square integrability and smoothness for densities of a probability measure on a compact connected Lie group.

Probability · Mathematics 2011-09-15 David Applebaum

The Hardy Inequality (HI) for potentials with countably many singularities of the form $V=\sum_{k\in \mathbf{Z}}\frac{1}{|x-a_k|^2}$ is not a trivial issue. In principle, the more singular poles are, the less the Hardy constant is: it is…

Analysis of PDEs · Mathematics 2021-08-17 Cristian Cazacu , Aurora Marica