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We extend the Neumann's methods and give the explicit formulae for the volume and the Chern-Simons invariant for hyperbolic alternating knot orbifolds.

几何拓扑 · 数学 2018-03-06 Ji-Young Ham , Joongul Lee

We define a geometric quantity for asymptotically hyperbolic manifolds, which we call the volume-renormalized mass. It is essentially a linear combination of the ADM mass surface integral and a renormalization of the volume. We show that…

微分几何 · 数学 2024-04-29 Mattias Dahl , Klaus Kroencke , Stephen McCormick

In this article, we discuss which semisimple locally symmetric spaces admit an AHS--structure invariant to local symmetries. We classify them for all types of AHS--structures and determine possible equivalence classes of such…

微分几何 · 数学 2013-12-06 Jan Gregorovič

We introduce the notion of relative volume entropy for two spacetimes with preferred compact spacelike foliations. This is accomplished by applying the notion of Kullback-Leibler divergence to the volume elements induced on spacelike…

广义相对论与量子宇宙学 · 物理学 2015-11-24 Nikolas Akerblom , Gunther Cornelissen

We define entropy invariants for abstract algebraic structures using an asymptotic Boltzmann formula.

泛函分析 · 数学 2014-09-26 Robert Graham , Mikael Pichot

We obtain a local volume growth for complete, noncompact Riemannian manifolds with small integral bounds and with Bach tensor having finite $L^2$ norm in dimension 4.

微分几何 · 数学 2007-05-23 Ye Li

We compute the local intersection cohomology of the irreducible components of varieties of complexes, by using Lusztig's geometric approach to quantum groups and explicit constructions of elements of Lusztig's canonical bases.

代数几何 · 数学 2025-02-12 Xin Fang , Markus Reineke

The period is a classical complex analytic invariant for a compact Riemann surface defined by integration of differential 1-forms. It has a strong relationship with the complex structure of the surface. In this chapter, we review another…

几何拓扑 · 数学 2016-02-09 Yuuki Tadokoro

We extend the former results of Ganea and the two of the authors with Takeda on the homotopy commutativity of the loop spaces of Hermitian symmetric spaces such that the loop spaces of all irreducible symmetric spaces but $\mathbb{C}P^3$…

代数拓扑 · 数学 2023-09-25 Daisuke Kishimoto , Yuki Minowa , Toshiyuki Miyauchi , Yichen Tong

We characterize non-Hermitian band structures by symmetry indicator topological invariants. Enabled by crystalline inversion symmetry, these indicators allow us to short-cut the calculation of conventional non-Hermitian topological…

介观与纳米尺度物理 · 物理学 2021-05-26 Pascal M. Vecsei , M. Michael Denner , Titus Neupert , Frank Schindler

We use the complexity function of an invariant, not necessary closed, subset of a two-sided shift space to compute the polynomial entropy of the induced dynamics on the hyperspace of continua for certain one-dimensional dynamical systems.…

动力系统 · 数学 2026-03-12 Jelena Katić , Darko Milinković , Milan Perić

We study the minimum volume ellipsoid estimator associates to a cloud of points in phase space. Using as a natural measure of uncertainty the symplectic capacity of the covariance ellipsoid we find that classical uncertainties obey…

数学物理 · 物理学 2015-05-19 Maurice de Gosson

We characterize the volume entropy of an arbitrary regular building as the topological pressure of the geodesic flow on an apartment. We show that the Liouville measure is not entropy maximizing measure for regular hyperbolic buildings. As…

动力系统 · 数学 2012-12-14 Francois Ledrappier , Seonhee Lim

This article deals with topological assumptions under which the minimal volume entropy of a closed manifold, and more generally of a finite simplicial complex, vanishes or is positive. In the first part of the article, we present…

几何拓扑 · 数学 2021-02-10 Ivan Babenko , Stephane Sabourau

We show that noncompact simply connected harmonic manifolds with volume density $\Theta_{p}(r) =\sinh ^{n-1} r$ is isometric to the real hyperbolic space and noncompact simply connected K\"{a}hler harmonic manifold with volume density…

dg-ga · 数学 2008-02-03 K. Ramachandran , Akhil Ranjan

We analyze the structure of the algebra N of symmetric polynomials in non-commuting variables in so far as it relates to its commutative counterpart. Using the "place-action" of the symmetric group, we are able to realize the latter as the…

组合数学 · 数学 2009-10-19 Francois Bergeron , Aaron Lauve

We compute the holographic entanglement entropy of a thermalized CFT on a time-dependent background in four dimensions. We consider a slab configuration extending beyond the cosmological horizon of a Friedmann-Lemaitre-Robertson-Walker…

高能物理 - 理论 · 物理学 2022-07-27 Vangelis Giantsos , Nikolaos Tetradis

We study a family of metrics on Euclidean space that generalize the left-invariant metric of the SOL group and the metric of the logarithmic model of Hyperbolic space. Suppose G is a connected, simply-connected, Heintze group of Abelian…

微分几何 · 数学 2024-10-15 Rene Garcia-Lara

We consider an infinitesimal volume where there are many rigid molecules of the same kind, and discuss the description and classification of the local anisotropy in this volume by tensors. First, we examine the symmetry of a rigid molecule,…

数学物理 · 物理学 2020-12-18 Jie Xu

We review the status of a program, outlined and motivated in the introduction, for the study of correspondences between spectral invariants of partially hyperbolic flows on locally symmetric spaces and their quantizations. Further we…

动力系统 · 数学 2024-01-31 Joachim Hilgert