Results 71 to 80 of about 189,122 (232)

Volume of $C^{1,\alpha}$-boundary domain in extended hyperbolic space

open access: yes, 2006
We consider the projectivization of Minkowski space with the analytic continuation of the hyperbolic metric and call this an extended hyperbolic space.
Cho, Yunhi, Kim, Hyuk
core   +2 more sources

Hyperbolically embedded subgroups and rotating families in groups acting on hyperbolic spaces

open access: yes, 2014
We introduce and study the notions of hyperbolically embedded and very rotating families of subgroups. The former notion can be thought of as a generalization of the peripheral structure of a relatively hyperbolic group, while the later one provides a ...
Dahmani, F., Guirardel, V., Osin, D.
core   +3 more sources

Development and Retrospective Clinical Assessment of a Patient-Specific Closed-Form Integro-Differential Equation Model of Plasma Dilution

open access: yesBiomedical Engineering and Computational Biology, 2017
A closed-form integro-differential equation (IDE) model of plasma dilution (PD) has been derived which represents both the intravenous (IV) infusion of crystalloid and the postinfusion period.
Glen Atlas   +3 more
doaj   +1 more source

Independence Property and Hyperbolic Groups [PDF]

open access: yesBulletin of Symbolic Logic, 2008
AbstractIn continuation of [JOH04, OH07], we prove that existentially closed CSA-groups have the independence property. This is done by showing that there exist words having the independence property relative to the class of torsion-free hyperbolic groups.
Jaligot, Eric   +2 more
openaire   +5 more sources

On Minimal Covolume Hyperbolic Lattices

open access: yesMathematics, 2017
We study lattices with a non-compact fundamental domain of small volume in hyperbolic space H n . First, we identify the arithmetic lattices in Isom + H n of minimal covolume for even n up to 18.
Ruth Kellerhals
doaj   +1 more source

Normal subgroups in the Cremona group (long version)

open access: yes, 2012
Let k be an algebraically closed field. We show that the Cremona group of all birational transformations of the projective plane P^2 over k is not a simple group.
D Osin   +27 more
core   +3 more sources

Random extensions of free groups and surface groups are hyperbolic

open access: yes, 2015
In this note, we prove that a random extension of either the free group $F_N$ of rank $N\ge3$ or of the fundamental group of a closed, orientable surface $S_g$ of genus $g\ge2$ is a hyperbolic group.
Taylor, Samuel J., Tiozzo, Giulio
core   +1 more source

Invariant triple products

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2006
It is shown that the space of invariant trilinear forms on smooth representations of a semisimple Lie group is finite dimensional if the group is a product of hyperbolic groups.
Anton Deitmar
doaj   +1 more source

A sixteen-relator presentation of an infinite hyperbolic Kazhdan group

open access: yes, 2017
We provide an explicit presentation of an infinite hyperbolic Kazhdan group with $4$ generators and $16$ relators of length at most $73$. That group acts properly and cocompactly on a hyperbolic triangle building of type $(3,4,4)$.
Caprace, Pierre-Emmanuel
core   +1 more source

On Hyperbolic 3-Manifolds Obtained by Dehn Surgery on Links

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2010
We study the algebraic and geometric structures for closed orientable 3-manifolds obtained by Dehn surgery along the family of hyperbolic links with certain surgery coefficients and moreover, the geometric presentations of the fundamental group of these ...
Soo Hwan Kim, Yangkok Kim
doaj   +1 more source

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