English
Related papers

Related papers: Horofunction Compactifications of Symmetric Spaces

200 papers

We define and study a new compactification, called the height compactification of the horospheric product of two infinite trees. We will provide a complete description of this compactification. In particular, we show that this…

General Topology · Mathematics 2022-05-03 Behrang Forghani , Keivan Mallahi-Karai

We give an example of a horocycle in the Teichm\"uller space of the five-times-punctured sphere that does not converge in the Gardiner--Masur compactification, or equivalently in the horofunction compactification of the Teichm\"uller…

Geometric Topology · Mathematics 2019-12-10 Maxime Fortier Bourque

We develop new tools to compute the index of symmetry in the context of homogeneous fibrations. As a consequence of our results, we determine the index of symmetry of every homogeneous space diffeomorphic to a compact rank-one symmetric…

Differential Geometry · Mathematics 2026-05-28 Ángel Cidre-Díaz , Carlos E. Olmos , Alberto Rodríguez-Vázquez

In this paper, we study functional and geometric inequalities on complete Finsler measure spaces under the condition that the weighted Ricci curvature ${\rm Ric}_\infty$ has a lower bound. We first obtain some local uniform Poincar\'{e}…

Differential Geometry · Mathematics 2023-06-22 Xinyue Cheng , Yalu Feng

The paper consider the symmetric of Finsler spaces. We give some conditions about globally symmetric Finsler spaces. Then we prove that these spaces can be written as a coset space of Lie group with an invariant Finsler metric. Finally, we…

Differential Geometry · Mathematics 2011-01-25 R. Chavosh Khatamy , R . Esmaili

We obtain symmetrization inequalities in the context of Fractional Hajlasz-Sobolev spaces in the setting of rearrangement invariant spaces and prove that for a large class of measures our symmetrization inequalities are equivalent to the…

Functional Analysis · Mathematics 2021-04-27 Joaquim Martin , Walter A. Ortiz

The possibility of extending operations of topological and semitopological algebras to their Stone-\v{C}ech compactification and factorization of continuous functions through homomorphisms to metrizable algebras are investigated. Most…

General Topology · Mathematics 2024-06-11 Evgenii Reznichenko

We define a compactification of symmetric spaces of noncompact type, seen as spaces of isometry classes of marked lattices, analogous to the Thurston compactification of the Teichm\"uller space, and we show that it is equivariantly…

Geometric Topology · Mathematics 2011-05-11 Thomas Haettel

We prove that a polar foliation of codimension at least three in an irreducible compact symmetric space is hyperpolar, unless the symmetric space has rank one. For reducible symmetric spaces of compact type, we derive decomposition results…

Differential Geometry · Mathematics 2014-01-10 Alexander Lytchak

Using the identification of the symmetric space $\mathrm{SL}(n,\mathbb{R})/\mathrm{SO}(n)$ with the Teichm\"uller space of flat $n$-tori of unit volume, we explore several metrics and compactifications of these spaces, drawing inspiration…

Differential Geometry · Mathematics 2019-03-27 Mark Greenfield , Lizhen Ji

Satake has constructed compactifications of symmetric spaces D=G/K which (under a condition called geometric rationality by Casselman) yield compactifications of the corresponding locally symmetric spaces. The different compactifications…

Representation Theory · Mathematics 2007-05-23 Leslie Saper

We study hyperpolar actions on reducible symmetric spaces of the compact type. Our main result is that an indecomposable hyperpolar action on a symmetric space of the compact type is orbit equivalent to a Hermann action or of cohomogeneity…

Differential Geometry · Mathematics 2015-03-05 Andreas Kollross

We extend a theorem by Kleiner, stating that on a group with polynomial growth, the space of harmonic functions of polynomial of at most $k$ is finite dimensional, to the settings of locally compact groups equipped with measures with…

Group Theory · Mathematics 2023-02-03 Idan Perl , Maud Szusterman

We study the Dirichlet problem for p-harmonic functions on metric spaces with respect to arbitrary compactifications. A particular focus is on the Perron method, and as a new approach to the invariance problem we introduce Sobolev-Perron…

Analysis of PDEs · Mathematics 2020-06-05 Anders Björn , Jana Björn , Tomas Sjödin

We introduce a variant of horocompactification which takes "directions" into account. As an application, we construct a compactification of the Teichm\"uller spaces via the renormalized volume of quasi-Fuchsian manifolds. Although we…

Geometric Topology · Mathematics 2022-09-28 Hidetoshi Masai

Let (X,d) be a metric space and m\in X. Suppose that \phi:X\times X\to\mathbold{R} is a nonnegative symmetric function. We define a metric d^{\phi,m} on X which is equivalent to d. If d^{\phi,m} is totally bounded, its completion is a…

Geometric Topology · Mathematics 2007-10-02 Young Deuk Kim

We introduce and study different compactifications of the moduli space of $n$ distinct weighted labeled points in a flag of affine spaces. We construct these spaces via the weighted and generalized Fulton-MacPherson compactifications of…

Algebraic Geometry · Mathematics 2024-11-12 Patricio Gallardo , Javier González-Anaya , José Luis González

Let G be a complex semisimple Lie group, K a maximal compact subgroup and V an irreducible representation of K. Denote by M the unique closed orbit of G in P(V) and by O its image via the moment map. For any measure on M we construct a map…

Differential Geometry · Mathematics 2010-12-10 Leonardo Biliotti , Alessandro Ghigi

In this paper, we address the equivalence of the analytic and probabilistic notions of harmonicity in the context of general symmetric Hunt processes on locally compact separable metric spaces. Extensions to general symmetric right…

Probability · Mathematics 2009-04-18 Zhen-Qing Chen

We construct compactifications of Riemannian locally symmetric spaces arising as quotients by Anosov representations. These compactifications are modeled on generalized Satake compactifications and, in certain cases, on maximal Satake…

Geometric Topology · Mathematics 2015-09-10 Olivier Guichard , Fanny Kassel , Anna Wienhard