Results 91 to 100 of about 189,122 (232)

Hyperbolic automorphisms of free groups [PDF]

Geometric and Functional Analysis, 2000
We prove that an automorphism $ :F\to F$ of a finitely generated free group $F$ is hyperbolic in the sense of Gromov if it has no nontrivial periodic conjugacy classes.
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On discontinuous groups acting on a real hyperbolic space, II [PDF]

, 1977
Takeshi Morokuma
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On boundaries of hyperbolic Coxeter groups

Topology and its Applications, 2001
A Coxeter group \(\Gamma\) together with its presentation \(S\) is called a Coxeter system and is denoted as \((\Gamma,S)\). Every Coxeter system \((\Gamma,S)\) defines a convex geodesic space \(X={\mathcal A}(\Gamma,S)\) called the Davis-Vinberg complex [\textit{M. Davis}, Nonpositive curvature and reflection groups, in: Proc. 11-th Annual Workshop in
University of Florida, Department of Mathematics, P.O. Box 118105 Little Hall, Gainesville, FL 32611-8105, USA ( host institution ), Dranishnikov, A.N. ( author )   +1 more
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Curved momentum spaces from quantum groups with cosmological constant

Physics Letters B, 2017
We bring the concept that quantum symmetries describe theories with nontrivial momentum space properties one step further, looking at quantum symmetries of spacetime in presence of a nonvanishing cosmological constant Λ. In particular, the momentum space
Á. Ballesteros, G. Gubitosi, I. Gutiérrez-Sagredo, F.J. Herranz   +3 more
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Hyperbolic graphs of surface groups [PDF]

Algebraic & Geometric Topology, 2011
We give a sufficient condition under which the fundamental group of a reglued graph of surfaces is hyperbolic. A reglued graph of surfaces is constructed by cutting a fixed graph of surfaces along the edge surfaces, then regluing by pseudo-Anosov homeomorphisms of the edge surfaces.
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HSMGNN Hyperbolic S² Rotation Group Multi-Channel Graph Neural Network for Cross-Lingual Entity Alignment

IEEE Access
Entity alignment—a crucial task in knowledge graph research—is often hampered by the inherent heterogeneity between the graphs being aligned.
Yu Deng, Shiwang Hou, Mingyi Zhang
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Analyticity of the entropy and the escape rate of random walks in hyperbolic groups

Discrete Analysis, 2017
Analyticity of the entropy and the escape rate of random walks in hyperbolic groups, Discrete Analysis 2017:7, 37pp. Let $\mu$ be a probability measure on an infinite finitely generated group $G$.
Sebastien Gouezel
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A hyperbolic Kac-Moody Calogero model

Journal of High Energy Physics
A new kind of quantum Calogero model is proposed, based on a hyperbolic Kac-Moody algebra. We formulate nonrelativistic quantum mechanics on the Minkowskian root space of the simplest rank-3 hyperbolic Lie algebra AE 3 with an inverse-square potential ...
Olaf Lechtenfeld, Don Zagier
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Engulfing and subgroup separability for hyperbolic groups [PDF]

, 1988
D. D. Long
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Tunneling Currents in the Hyperbolic Phase Space

Entropy
We introduce the quantum currents for quantum systems with an SU(1,1) dynamic symmetry group whose evolution is governed by a non-linear Hamiltonian possessing a continuous spectrum and apply them to the analysis of the tunneling dynamics on the ...
Ivan F. Valtierra, Andrei B. Klimov
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