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相关论文: Local conical dimensions for measures

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The localization technique from convex geometry is generalized to the setting of Riemannian manifolds whose Ricci curvature is bounded from below. In a nutshell, our method is based on the following observation: When the Ricci curvature is…

微分几何 · 数学 2014-08-28 Bo'az Klartag

We prove that the sequence of cones of metric measure spaces converges if the sequence of base spaces converges in Gromov's box, concentration, and weak topologies. As an application, we show that the generalized Cauchy distribution with…

度量几何 · 数学 2024-02-23 Syota Esaki , Daisuke Kazukawa , Ayato Mitsuishi

We study local structure of the moduli space of compact Einstein metrics with respect to the boundary conformal metric and mean curvature. In dimension three, we confirm M. Anderson's conjecture in a strong sense, showing that the map from…

微分几何 · 数学 2024-05-29 Zhongshan An , Lan-Hsuan Huang

We compute some numerical invariants of local cohomology of the ring of invariants by a finite group, mainly in the modular case. Also, we present some applications. In particular, we study Cohen-Macaulay property of modular invariants from…

交换代数 · 数学 2018-02-22 Mohsen Asgharzadeh

We provide a method of designing protocols for implementing multipartite quantum measurements when the parties are restricted to local operations and classical communication (LOCC). For each finite integer number of rounds, $r$, the method…

量子物理 · 物理学 2016-05-12 Scott M. Cohen

In this paper, we establish local decay estimates for the bi-Laplacian Schr\"{o}dinger equation with time-dependent (in particular, quasi-periodic) potentials in spatial dimension $n\ge14$. Moreover, under stronger spectral regularity…

偏微分方程分析 · 数学 2026-03-27 Jiayan Wu , Ting Zhang , Ruze Zhou

We consider manifolds with conic singularites that are isometric to $\mathbb{R}^{n}$ outside a compact set. Under natural geometric assumptions on the cone points, we prove the existence of a logarithmic resonance-free region for the…

偏微分方程分析 · 数学 2012-10-03 Dean Baskin , Jared Wunsch

We propose a measure of shape which is appropriate for the study of a complicated geometric structure, defined using the topology of neighborhoods of the structure. One aspect of this measure gives a new notion of fractal dimension. We…

代数拓扑 · 数学 2010-12-20 Robert MacPherson , Benjamin Schweinhart

We introduce a concept of porosity for measures and study relations between dimensions and porosities for two classes of measures: measures on $R^n$ which satisfy the doubling condition and strongly porous measures on $R$.

chao-dyn · 物理学 2009-10-31 Jean-Pierre Eckmann , Esa Jarvenpaa , Maarit Jarvenpaa

It is well known that any measure in S^2 satisfying certain simple conditions is the surface measure of a bounded convex body in R^3. It is also known that a local perturbation of the surface measure may lead to a nonlocal perturbation of…

度量几何 · 数学 2018-06-14 Alexander Plakhov

We study some geometric properties of the $L_q$-centroid bodies $Z_q(\mu)$ of an isotropic log-concave measure $\mu $ on ${\mathbb R}^n$. For any $2\ls q\ls\sqrt{n}$ and for $\varepsilon \in (\varepsilon_0(q,n),1)$ we determine the inradius…

We propose to use the hadronic shape variables to test the assumption of ``local duality'' in the doubly-charmed B decays, $B\rightarrow X_{c\bar c s}$. We compute these shape variables at leading order in parton model, and discuss how they…

高能物理 - 唯象学 · 物理学 2015-06-25 Ming Lu

We propose a new method for local distance metric learning based on sample similarity as side information. These local metrics, which utilize conical combinations of metric weight matrices, are learned from the pooled spatial…

机器学习 · 计算机科学 2019-02-25 YInjie Huang , Cong Li , Michael Georgiopoulos , Georgios C. Anagnostopoulos

The method of the top quark mass measurement from $M_{b l}$ distribution in $t \to b l \nu$ decays can be considerably improved if applying the technique of moments and proceeding to moments of high degree. At the LHC this allows one to…

高能物理 - 唯象学 · 物理学 2016-12-07 M. L. Nekrasov

Metric mean dimension is a metric invariant of dynamical systems. It is a dynamical analogue of Minkowski dimension of metric spaces. We explain that old ideas of Bowen (1972) can be used for clarifying the local nature of metric mean…

动力系统 · 数学 2021-03-09 Masaki Tsukamoto

We construct measure which determines a two-variable mean in a very natural way. Using that measure we can extend the mean to infinite sets as well. E.g. we can calculate the geometric mean of any set with positive Lebesgue measure. We also…

经典分析与常微分方程 · 数学 2023-12-06 Attila Losonczi

Aim of this paper is to show that it makes sense to write the continuity equation on a metric measure space $(X,d,m)$ and that absolutely continuous curves $\mu_t$ w.r.t. the distance $W_2$ can be completely characterized as solutions of…

偏微分方程分析 · 数学 2018-07-18 Nicola Gigli , Bangxian Han

We introduce the notion of pseudo-cones of metric spaces as a generalization of both of the tangent cones and the asymptotic cones. We prove that the Assouad dimension of a metric space is bounded from below by that of any pseudo-cone of…

度量几何 · 数学 2020-01-17 Yoshito Ishiki

We study the fine geometric structure of bifurcation currents in the parameter space of cubic polynomials viewed as dynamical systems. In particular we prove that these currents have some laminar structure in a large region of parameter…

动力系统 · 数学 2007-05-23 Romain Dujardin

General definitions for causal structures on manifolds of dimension d+1>2 are presented for the topological category and for any differentiable one. Locally, these are given as cone structures via local (pointwise) homeomorphic or…

广义相对论与量子宇宙学 · 物理学 2015-06-25 Martin Rainer