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We study the global topology of the horofunction compactification of smooth manifolds with a Finsler distance. The main goal is to show, for certain classes of these spaces, that the horofunction compactification is naturally homeomorphic…

Geometric Topology · Mathematics 2023-11-27 Bas Lemmens , Kieran Power

We consider horofunction compactifications of symmetric spaces with respect to invariant Finsler metrics. We show that any (generalized) Satake compactification can be realized as a horofunction compactification with respect to a polyhedral…

Differential Geometry · Mathematics 2018-09-24 Thomas Haettel , Anna-Sofie Schilling , Cormac Walsh , Anna Wienhard

In this paper we answer positively a question raised by Kapovich and Leeb in a paper titled "Finsler bordifications of symmetric and certain locally symmetric spaces". Specifically, we show that for a finite-dimensional vector space with a…

Geometric Topology · Mathematics 2024-05-09 Lizhen Ji , Anna-Sofie Schilling

Given a Hermitian symmetric space $M$ of noncompact type, we give a complete description of the horofunctions in the metric compactification of $M$ with respect to the Carath\'eodory distance, via the realisation of $M$ as the open unit…

Differential Geometry · Mathematics 2024-11-25 Cho-Ho Chu , María Cueto-Avellaneda , Bas Lemmens

In this work we describe horofunction compactifications of metric spaces and finite dimensional real vector spaces through asymmetric metrics and asymmetric polyhedral norms by means of nonstandard methods, that is, ultrapowers of the…

Metric Geometry · Mathematics 2023-05-05 Corina Ciobotaru , Linus Kramer , Petra Schwer

We give a geometric interpretation of the maximal Satake compactification of symmetric spaces $X=G/K$ of noncompact type, showing that it arises by attaching the horofunction boundary for a suitable $G$-invariant Finsler metric on $X$. As…

Differential Geometry · Mathematics 2018-06-13 Michael Kapovich , Bernhard Leeb

The arc metric is an asymmetric metric on the Teichm{\"u}ller space T(S) of a surface S with nonempty boundary. In this paper we study the relation between Thurston's compactification and the horofunction compactification of T(S) endowed…

Geometric Topology · Mathematics 2018-09-25 Daniele Alessandrini , Lixin Liu , Athanase Papadopoulos , Weixu Su

Two commonly studied compactifications of Teichm\"uller spaces of finite type surfaces with respect to the Teichm\"uller metric are the horofunction and visual compactifications. We show that these two compactifications are related, by…

Geometric Topology · Mathematics 2024-12-18 Aitor Azemar

In this paper, we investigate the $L^2$-Dolbeault cohomology of the symmetric power of cotangent bundles of ball quotients with finite volume, as well as their toroidal compactification. Through the application of Hodge theory for complete…

Complex Variables · Mathematics 2026-01-14 Seungjae Lee , Aeryeong Seo

We establish a natural and geometric 1-1 correspondence between projective toric varieties of dimension $n$ and horofunction compactifications of $\mathbb{R}^n$ with respect to rational polyhedral norms. For this purpose, we explain a…

Metric Geometry · Mathematics 2017-05-23 Lizhen Ji , Anna-Sofie Schilling

Hilbert's and Thompson's metric spaces on the interior of cones in JB-algebras are important examples of symmetric Finsler spaces. In this paper we characterize the Hilbert's metric isometries on the interiors of cones in JBW-algebras, and…

Metric Geometry · Mathematics 2023-11-27 Bas Lemmens , Mark Roelands , Marten Wortel

We explicitly construct a symplectomorphism that relates magnetic twists to the invariant hyperk\"ahler structure of the tangent bundle of a Hermitian symmetric space. This symplectomorphism reveals foliations by (pseudo-) holomorphic…

Symplectic Geometry · Mathematics 2024-06-25 Johanna Bimmermann

We study Hodge bundles on Siegel varieties and their various extensions to smooth toroidal compactifications. Precisely, we construct a canonical Hodge bundle on an arbitrary Siegel variety so that the holomorphic tangent bundle can be…

Algebraic Geometry · Mathematics 2014-05-20 Shing-Tung Yau , Yi Zhang

We generalize the horofunction compactification to maps that are not distance functions. As an application we define a horofunction counterpart to the Teichm\"uller distance, and discuss its properties.

Geometric Topology · Mathematics 2025-12-30 Hidetoshi Masai

We show that the horofunction compactification of Teichm\"uller space with the Teichm\"uller metric is homeomorphic to the Gardiner-Masur compactification.

Geometric Topology · Mathematics 2012-08-24 Lixin Liu , Weixu Su

In this paper, we answer some natural questions on symmetrisation and more general combinations of Finsler metrics, with a view towards applications to Funk and Hilbert geometries and to metrics on Teichm{\"u}ller spaces. For a general…

Differential Geometry · Mathematics 2025-06-05 Ismail Saglam , Ken'Ichi Ohshika , Athanase Papadopoulos

Wolf gave a homeomorphism from the Teichm\"uller space to the space of quadratic differentials on a closed Riemann surface by using harmonic maps. Moreover, using harmonic maps rays, he gave a compactification of the Teichm\"uller space and…

Geometric Topology · Mathematics 2022-04-01 Kento Sakai

The space of positively curved hermitian metrics on a positive holomorphic line bundle over a compact complex manifold is an infinite-dimensional symmetric space. It is shown by Phong and Sturm that geodesics in this space can be uniformly…

Differential Geometry · Mathematics 2010-07-13 Jian Song , Steve Zelditch

We construct a compactification of the moduli space of twisted holomorphic maps with varying complex structure and bounded energy. For a given compact symplectic manifold $X$ with a compatible complex structure and a Hamiltonian action of…

Symplectic Geometry · Mathematics 2007-05-23 Ignasi Mundet i Riera , Gang Tian

We give a complete analytic and geometric description of the horofunction boundary for polygonal sub-Finsler metrics---that is, those that arise as asymptotic cones of word metrics---on the Heisenberg group. We develop theory for the more…

Metric Geometry · Mathematics 2020-10-27 Nate Fisher , Sebastiano Nicolussi Golo
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