Results 31 to 40 of about 300,261 (100)

On the Differential Geometry of Coframe Bundle with Cheeger-Gromoll Metric

open access: yesInternational Electronic Journal of Geometry, 2022
In this paper we introduce the Cheeger-Gromoll type metric on the coframe bundle of a Riemannian manifold and investigate the Levi-Civita connection, curvature tensor, sectional curvature and geodesics of coframe bundle with this metric.
Habil Fattayev
semanticscholar   +1 more source

A Generalized Hausdorff Distance Based Quality Metric for Point Cloud Geometry [PDF]

open access: yesInternational Workshop on Quality of Multimedia Experience, 2020
Reliable quality assessment of decoded point cloud geometry is essential to evaluate the compression performance of emerging point cloud coding solutions and guarantee some target quality of experience.
Alireza Javaheri   +3 more
semanticscholar   +1 more source

Asymptotic Geometry of the Hitchin Metric [PDF]

open access: yesCommunications in Mathematical Physics, 2017
We study the asymptotics of the natural L2 metric on the Hitchin moduli space with group $${G = \mathrm{SU}(2)}$$G=SU(2). Our main result, which addresses a detailed conjectural picture made by Gaiotto et al.
R. Mazzeo   +3 more
semanticscholar   +1 more source

Thermodynamic metric geometry of the two-state ST2 model for supercooled water [PDF]

open access: yesJournal of Chemical Physics, 2019
Liquid water has anomalous liquid properties, such as its density maximum at 4\degree C. An attempt at theoretical explanation proposes a liquid-liquid phase transition line in the supercooled liquid state, with coexisting low-density (LDL) and high ...
P. Mausbach, H. May, George Ruppeiner
semanticscholar   +1 more source

Metric geometry of infinite-dimensional Lie groups and their homogeneous spaces [PDF]

open access: yesForum mathematicum, 2018
We study the geometry of Lie groups G with a continuous Finsler metric, in presence of a subgroup K such that the metric is right-invariant for the action of K.
G. Larotonda
semanticscholar   +1 more source

Lp Metric Geometry of Big and Nef Cohomology Classes [PDF]

open access: yesActa Mathematica Vietnamica, 2018
Let (X,ω) be a compact Kähler manifold of dimension n, and let 𝜃 be a closed smooth real (1,1)-form representing a big and nef cohomology class. We introduce a metric dp,p ≥ 1, on the finite energy space Ep(X,𝜃)\documentclass[12pt]{minimal} \usepackage ...
E. Di Nezza, Chinh H. Lu
semanticscholar   +1 more source

Volumes of polytopes in spaces of constant curvature

open access: yes, 2013
We overview the volume calculations for polyhedra in Euclidean, spherical and hyperbolic spaces. We prove the Sforza formula for the volume of an arbitrary tetrahedron in $H^3$ and $S^3$.
A. Cauchy   +44 more
core   +1 more source

Combinatorial problems of (quasi-)crystallography

open access: yes, 2002
Several combinatorial problems of (quasi-)crystallography are reviewed with special emphasis on a unified approach, valid for both crystals and quasicrystals. In particular, we consider planar sublattices, similarity sublattices, coincidence sublattices,
Baake, Michael, Grimm, Uwe
core   +3 more sources

The connected components of the space of Alexandrov surfaces

open access: yes, 2013
Denote by $\mathcal{A}(\kappa)$ the set of all compact Alexandrov surfaces with curvature bounded below by $\kappa$ without boundary, endowed with the topology induced by the Gromov-Hausdorff metric. We determine the connected components of $\mathcal{A}(\
A.D. Aleksandrov   +5 more
core   +1 more source

The asymptotic dimension of a curve graph is finite

open access: yes, 2007
We find an upper bound for the asymptotic dimension of a hyperbolic metric space with a set of geodesics satisfying a certain boundedness condition studied by Bowditch.
Bell, Gregory, Fujiwara, Koji
core   +1 more source

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