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A compactness of the Revuz map is established in the sense that the locally uniform convergence of a sequence of positive continuous additive functionals is derived in terms of their smooth measures. To this end, we first introduce a metric…

Probability · Mathematics 2024-05-08 Yasuhito Nishimori , Matsuyo Tomisaki , Kaneharu Tsuchida , Toshihiro Uemura

We survey the theory of the compactified Jacobian associated to a singular curve. We focus on describing low genus examples using the Abel map.

Algebraic Geometry · Mathematics 2015-09-01 Jesse Leo Kass

These lecture notes explain the construction and basic properties of the wonderful compactification of a complex semisimple group of adjoint type. An appendix discusses the more general case of a semisimple symmetric space.

Algebraic Geometry · Mathematics 2008-01-04 Sam Evens , Benjamin F Jones

We construct a locally finite connected graph whose Freudenthal compactification is universal for the class of completely regular continua, a class also known in the literature under the name thin or graph-like continua.

General Topology · Mathematics 2022-09-16 Jan Ouborny , Max Pitz

This paper introduces the concepts of correlation entropy and local correlation entropy for free semigroup actions on compact metric space, and explores their fundamental properties. Thereafter, we generalize some classical results on…

Dynamical Systems · Mathematics 2024-06-27 Xiaojiang Ye , Yanjie Tang , Dongkui Ma

We study a summability method called almost convergence for bounded measurable functions defined on a locally compact abelian group. We define almost convergence using topologically invariant means and exhibit two different kinds of…

Functional Analysis · Mathematics 2023-09-12 Ryoichi Kunisada

We provide a qualitative review of flux compactifications of string theory, focusing on broad physical implications and statistical methods of analysis.

High Energy Physics - Theory · Physics 2008-11-26 Frederik Denef , Michael R. Douglas , Shamit Kachru

We study the sequence entropy for amenable group actions and investigate systematically spectrum and several mixing concepts via sequence entropy both in measure-theoretic dynamical systems and topological dynamical systems. Moreover, we…

Dynamical Systems · Mathematics 2023-11-27 Chunlin Liu , Kesong Yan

The universal centralizer of a semisimple algebraic group is the family of centralizers of regular elements, parametrized by their conjugacy classes. When the group is of adjoint type, we construct a smooth, log-symplectic fiberwise…

Representation Theory · Mathematics 2023-11-02 Ana Balibanu

We study groups of homeomorphic bijections on spaces that are finite unions of compact connected linearly ordered subsets. We prove that all such groups when endowed with the topology of point-wise convergence are topological groups. }

General Topology · Mathematics 2023-12-29 Raushan Buzyakova

We study polar actions with horizontal sections on the total space of certain principal bundles $G/K\to G/H$ with base a symmetric space of compact type. We classify such actions up to orbit equivalence in many cases. In particular, we…

Differential Geometry · Mathematics 2011-03-07 Marco Mucha

The end compactification |\Gamma| of the locally finite graph \Gamma is the union of the graph and its ends, endowed with a suitable topology. We show that \pi_1(|\Gamma|) embeds into a nonstandard free group with hyperfinitely many…

Geometric Topology · Mathematics 2012-03-30 Isaac Goldbring , Alessandro Sisto

The analytic properties of the Markov operator associated to a random walk are common tools in the study of the behaviour and some probabilistic features related to the walk. In this paper we consider a class of Markov operators which…

Probability · Mathematics 2007-05-23 Fabio Zucca

If a Hausdorff locally compact paracompact space has a coarse structure, then there is a family of well behaved compactifications associated to it. If there are two of these spaces, $X$ and $Y$, with a good coarse equivalence, then there is…

General Topology · Mathematics 2022-08-02 Lucas H. R. de Souza

We discuss the finiteness of the topological entropy of continuous endomorphims for some classes of locally compact groups. Firstly, we focus on the abelian case, imposing the condition of being compactly generated, and note an interesting…

Group Theory · Mathematics 2024-03-01 Francesco G. Russo , Olwethu Waka

We introduce the "loop shortening property" and the "basepoint loop shortening property" for finitely generated groups, and examine their relation to quadratic isoperimetric functions and almost convexity.

Group Theory · Mathematics 2012-05-16 Murray J Elder

We examine sufficient conditions for the dual of a topological group to be metrizable and locally compact.

General Topology · Mathematics 2016-03-01 Frédéric Mynard , Mikhail Tkachenko

In this paper we have studied some important topological properties and characterization of I^K-convergence of functions which is a common generalization of I*-convergence of functions. We also introduce the idea of I^K*-convergence and…

General Topology · Mathematics 2018-08-01 Amar Kumar Banerjee , Mahendranath Paul

In this article we announce some results on compactifying moduli spaces of rank-2 vector bundles on surfaces by spaces of vector bundles on trees of surfaces. This is thought as an algebraic counterpart of the so called bubbling of vector…

Algebraic Geometry · Mathematics 2011-11-01 D. Markushevich , A. S. Tikhomirov , G. Trautmann

We generalize finite-sample bounds for convex clustering to the setting where affinity weights appearing in the objective correspond to a general connected graph. These bounds and their analysis lead to a better understanding of clustering…

Machine Learning · Statistics 2026-05-26 Sam Rosen , Jason Xu