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The wave speed of a stochastic wave equation driven by Riesz noise on the unbounded multidimensional spatial domain is estimated based on discrete measurements. Central limit theorems for second-order variations of the observations in…

Statistics Theory · Mathematics 2026-02-05 Anton Tiepner , Mathias Trabs , Eric Ziebell

In this paper we will study the boundedness of Riesz Potentials, Bessel potentials and Fractional Derivatives on Gaussian Besov-Lipschitz spaces $B_{p,q}^{\alpha}(\gamma_d)$. Also these results can be extended to the case of Laguerre or…

Classical Analysis and ODEs · Mathematics 2012-02-28 A. Eduardo Gatto , Ebner Pineda , Wilfredo Urbina

We consider conservative and gradient flows for $N$-particle Riesz energies with mean-field scaling on the torus $\mathbb{T}^d$, for $d\geq 1$, and with thermal noise of McKean-Vlasov type. We prove global well-posedness and relaxation to…

Analysis of PDEs · Mathematics 2023-04-12 Antonin Chodron de Courcel , Matthew Rosenzweig , Sylvia Serfaty

In this work, we study the Wasserstein gradient flow of the Riesz energy defined on the space of probability measures. The Riesz kernels define a quadratic functional on the space of measure which is not in general geodesically convex in…

Analysis of PDEs · Mathematics 2024-01-30 Siwan Boufadène , François-Xavier Vialard

In this paper we find asymptotic equalities for the discrete logarithmic energy of sequences of well separated spherical $t$-designs on the unit sphere ${\mathbb{S}^{d}\subset\mathbb{R}^{d+1}}$, $d\geq2$. Also we establish exact order…

Classical Analysis and ODEs · Mathematics 2019-01-03 Tetiana Stepanyuk

Energy minimizing maps (E.M.M.s) play a central role in the calculus of variations, partial differential equations (PDEs), and geometric analysis. These maps are often embedded into $C^\infty$ Riemannian manifolds to minimize the Dirichlet…

Analysis of PDEs · Mathematics 2024-05-17 Owen Drummond

We study properties of the $\alpha$-Green kernel $g_D^\alpha$ of order $0<\alpha\leqslant2$ for a domain $D\subset\mathbb R^n$, $n\geqslant3$. This kernel is associated with the $\alpha$-Riesz kernel $|x-y|^{\alpha-n}$, $x,y\in\mathbb R^n$,…

Classical Analysis and ODEs · Mathematics 2017-08-31 Bent Fuglede , Natalia Zorii

Many geometric machine learning and image analysis applications, require a left-invariant metric on the 5D homogeneous space of 3D positions and orientations SE(3)/SO(2). This is done in Equivariant Neural Networks (G-CNNs), or in PDE-Based…

Differential Geometry · Mathematics 2025-10-03 Remco Duits , Gijs Bellaard , Barbara Tumpach

For a compact $ d $-dimensional rectifiable subset of $ \mathbb{R}^{p} $ we study asymptotic properties as $ N\to\infty $ of $N$-point configurations minimizing the energy arising from a Riesz $ s $-potential $ 1/r^s $ and an external field…

Classical Analysis and ODEs · Mathematics 2016-10-13 D. P. Hardin , E. B. Saff , O. V. Vlasiuk

We study a capacity theory based on a definition of a Riesz potential in metric spaces with a doubling measure. In this general setting, we study the basic properties of the Riesz capacity, including monotonicity, countable subadditivity…

Functional Analysis · Mathematics 2015-10-30 Juho Nuutinen , Pilar Silvestre

In this paper we study aspects of the ergodic theory of the geodesic flow on a non-compact negatively curved manifold. It is a well known fact that every continuous potential on a compact metric space has a maximizing measure.…

Dynamical Systems · Mathematics 2020-01-07 Felipe Riquelme , Anibal Velozo

The Riesz gas in one-dimension consists of particles interacting via a pair potential, ${\rm sgn}(s) |x - x'|^{-s}$, $s \ne 0$ and $-\log | x - x'|$ for $s=0$. In the infinite density limit, with the particle support the interval $[-1,1]$,…

Mathematical Physics · Physics 2026-04-29 Peter J. Forrester

The paper Brauchart, Hardin and Saff [Bull. Lond. Math. Soc. 41(4) (2009)] gives the complete asymptotic expansions of the Riesz $s$-energy of the $N$th roots of unity which form a universally optimal distribution of points on the unit…

Mathematical Physics · Physics 2014-11-10 J. S. Brauchart

We derive the complete asymptotic expansion in terms of powers of $N$ for the Riesz $s$-energy of $N$ equally spaced points on the unit circle as $N\to \infty$. For $s\ge -2$, such points form optimal energy $N$-point configurations with…

Mathematical Physics · Physics 2011-11-02 J. S. Brauchart , D. P. Hardin , E. B. Saff

Free energy differences are a central quantity of interest in physics, chemistry, and biology. We develop design principles that improve the precision and accuracy of free energy estimators, which has potential applications to screening for…

Statistical Mechanics · Physics 2021-01-05 Steven Blaber , David A. Sivak

It is shown that the supports of measures minimizing weakly repulsive energies on Riemannian manifolds with sectional curvature bounded below do not have concentration points. This extends the results of Bj\"orck and Carrillo, Figalli, and…

Functional Analysis · Mathematics 2020-09-11 Oleksandr Vlasiuk

In the present paper we study the minimization of energy integrals on the sphere with a focus on an interesting clustering phenomenon: for certain types of potentials, optimal measures are discrete or are supported on small sets. In…

Classical Analysis and ODEs · Mathematics 2019-08-28 Dmitriy Bilyk , Alexey Glazyrin , Ryan Matzke , Josiah Park , Oleksandr Vlasiuk

For a fixed, compactly supported probability measure $\mu$ on the $d$-dimensional space $\mathbb{R}^d$, we consider the problem of minimizing the $p^{\mathrm{th}}$-power average distance functional over all compact, connected $\Sigma…

Optimization and Control · Mathematics 2025-08-12 Lucas O'Brien , Forest Kobayashi , Young-Heon Kim

Geodesics escape is widely used to study the scattering of hyperbolic equations. However, there are few progresses except in a simply connected complete Riemannian manifold with nonpositive curvature. We propose a kind of complete…

Analysis of PDEs · Mathematics 2018-12-03 Zhen-Hu Ning , Fengyan Yang , Xiaopeng Zhao

Let $\pi:\mc{X}\to \mc{T}$ be Teichm\"uller curve over Teichm\"uller space $\mc{T}$, such that the fiber $\mc{X}_z=\pi^{-1}(z)$ is exactly the Riemann surface given by the complex structure $z\in \mc{T}$. For a fixed Riemannian manifold $M$…

Differential Geometry · Mathematics 2018-09-05 Inkang Kim , Xueyuan Wan , Genkai Zhang