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Related papers: Weyl's lemma on $RCD(K,N)$ metric measure spaces

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In this paper, we will prove the Weyl's law for the asymptotic formula of Dirichlet eigenvalues on metric measure spaces with generalized Ricci curvature bounded from below.

Differential Geometry · Mathematics 2020-02-07 Hui-Chun Zhang , Xi-Ping Zhu

In this paper, we will study the (linear) geometric analysis on metric measure spaces. We will establish a local Li-Yau's estimate for weak solutions of the heat equation and prove a sharp Yau's gradient gradient for harmonic functions on…

Differential Geometry · Mathematics 2016-07-21 Hui-Chun Zhang , Xi-Ping Zhu

We derive logarithmic gradient estimate and universal boundedness estimate for semilinear elliptic equations on \RCD\, metric measure spaces, which contains the class of Riemannian manifolds with Ricci curvature bounded below. These…

Analysis of PDEs · Mathematics 2026-05-21 Zhihao Lu

The goal of this note is to demonstrate how existing results can be adapted to establish the following result: A locally metric measure homogeneous $\mathrm{RCD}(K,N)$ space is isometric to, after multiplying a positive constant to the…

Differential Geometry · Mathematics 2024-10-31 Shouhei Honda , Artem Nepechiy

The Weyl modules in the sense of V.Chari and A.Pressley [CP] over the current Lie algebra on an affine variety are studied. We show that local Weyl modules are finite-dimensional and generalize the tensor product decomposition theorem from…

Quantum Algebra · Mathematics 2015-06-26 B. Feigin , S. Loktev

Let $(X,d)$ be a complete, pathwise connected metric measure space with locally Ahlfors $Q$-regular measure $\mu$, where $Q>1$. Suppose that $(X,d,\mu)$ supports a (local) $(1,2)$-Poincar\'e inequality and a suitable curvature lower bound.…

Analysis of PDEs · Mathematics 2011-09-16 Renjin Jiang

In this note we show how to adjust some proofs of Koskela et. al 2003 and Jiang 2011 in order to show that in certain spaces $(X,d,\mu)$, like $RCD(K,N)$-spaces, every Sobolev function with local $L^{p}$-Laplacian and $p>\dim\mu$ is locally…

Metric Geometry · Mathematics 2013-07-18 Martin Kell

We prove a local regularity result for distributional solutions of the Poisson's equation with $L^p$ data. We use a very short argument based on Weyl's lemma and Riesz-Fr\'echet representation theorem.

Analysis of PDEs · Mathematics 2019-04-17 Giovanni Di Fratta , Alberto Fiorenza

In this paper, we study the regularity of weak solutions to a class of nonlocal elliptic equations in Bessel potential spaces $H^{s,p}$. Our main results can be seen as an extension of the well-known $W^{1,p}$ regularity theory for local…

Analysis of PDEs · Mathematics 2019-12-23 Simon Nowak

We establish two surprising types of Weyl's laws for some compact $\mathrm{RCD}(K, N)$/Ricci limit spaces. The first type could have power growth of any order (bigger than one). The other one has an order corrected by logarithm similar to…

Differential Geometry · Mathematics 2025-07-03 Xianzhe Dai , Shouhei Honda , Jiayin Pan , Guofang Wei

We extend the Margulis Lemma for manifolds with lower Ricci curvature bounds to the $\text{RCD}(K,N)$ setting. As one of our main tools, we obtain improved regularity estimates for Regular Langrangian flows on these spaces.

Differential Geometry · Mathematics 2025-11-12 Qin Deng , Jaime Santos-Rodríguez , Sergio Zamora , Xinrui Zhao

We extend Alberti's Rank-One Theorem to $\mathrm{RCD}(K,N)$ metric measure spaces.

Metric Geometry · Mathematics 2024-10-16 Gioacchino Antonelli , Camillo Brena , Enrico Pasqualetto

The well known Weyl's Law (Weyl's asymptotic formula) gives an approximation to the number $\mathcal{N}_{\omega}$ of eigenvalues (counted with multiplicities) on a large interval $[0,\>\omega]$ of the Laplace-Beltrami operator on a compact…

Functional Analysis · Mathematics 2019-12-25 Isaac Z. Pesenson

We prove higher summability and regularity of \Gamma(f) for functions f in spaces satisfying the Bakry-\'Emery condition BE(K,\infty). As a byproduct, we obtain various equivalent weak formulations of BE(K,N) and we prove the…

Analysis of PDEs · Mathematics 2016-03-01 Luigi Ambrosio , Andrea Mondino , Giuseppe Savaré

In this paper, we give the characterization of metric measure spaces that satisfy synthetic lower Riemannian Ricci curvature bounds (so called $RCD^*(K,N)$ spaces) with \emph{non-empty} one dimensional regular sets. In particular, we prove…

Metric Geometry · Mathematics 2018-07-24 Yu Kitabeppu , Sajjad Lakzian

Ambrosio, Honda, and Tewodrose proved that the regular Weyl's law is equivalent to a mild condition related to the infinitesimal behavior of the measure of balls in compact finite dimensional RCD spaces. Though that condition is seemed to…

Metric Geometry · Mathematics 2023-02-21 Akemi Iwahashi , Yu Kitabeppu , Akari Yonekura

In this paper, we are concerned with regularity of suitable weak solutions of the 3D Navier-Stokes equations in Lorentz spaces. We obtain $\varepsilon$-regularity criteria in terms of either the velocity, the gradient of the velocity, the…

Analysis of PDEs · Mathematics 2019-09-25 Yanqing Wang , Wei Wei , Huan Yu

By seeing whether a Liouville type theorem holds for positive, bounded, and/or finite energy $p$-harmonic and $p$-quasiharmonic functions, we classify proper metric spaces equipped with a locally doubling measure supporting a local…

Metric Geometry · Mathematics 2023-02-15 Anders Bjorn , Jana Bjorn , Nageswari Shanmugalingam

The aim of this paper is threefold. We first prove that, on $\mathrm{RCD}(K,N)$ spaces, the boundary measure of any set with finite perimeter is concentrated on the $n$-regular set $\mathcal{R}_n$, where $n\le N$ is the essential dimension…

Metric Geometry · Mathematics 2021-09-28 Elia Bruè , Enrico Pasqualetto , Daniele Semola

We prove a regularity lemma with respect to arbitrary Keisler measures mu on V, nu on W where the bipartite graph (V,W,R) is definable in a saturated structure M and the formula R(x,y) is stable. The proof is rather quick and uses local…

Logic · Mathematics 2016-04-18 Maryanthe Malliaris , Anand Pillay
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