Results 31 to 40 of about 1,418 (58)
On Veech groups of infinite superelliptic curves
Complex ManifoldsWe study infinite superelliptic curves as translation surfaces and explore their Veech groups. These objects are branched covering of the complex plane, branching over infinitely many points.
Maluendas Camilo Ramírez
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Limit pretrees for free group automorphisms: existence
Forum of Mathematics, SigmaTo any free group automorphism, we associate a real pretree with several nice properties. First, it has a rigid/non-nesting action of the free group with trivial arc stabilizers.
Jean Pierre Mutanguha
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Growth Functions of Fr-sets [PDF]
, 2012 2010 Mathematics Subject Classification: 05C30, 20E08, 20F65.In this paper we consider an open problem from [1], regarding the description of the growth functions of the free group acts.
Lomond, Jonny
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Stable Higgs bundles over positive principal elliptic fibrations
, 2018 Let $M$ be a compact complex manifold of dimension at least three and $\Pi : M\rightarrow X$ a positive principal elliptic fibration, where $X$ is a compact K\"ahler orbifold. Fix a preferred Hermitian metric on $M$.
Biswas, Indranil +2 more
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Contractibility of boundaries of cocompact convex sets and embeddings of limit sets
Analysis and Geometry in Metric SpacesWe provide sufficient conditions as to when a boundary component of a cocompact convex set in a CAT(0){\rm{CAT}}\left(0)-space is contractible. We then use this to study when the limit set of a quasi-convex, codimension one subgroup of a negatively ...
Bregman Corey, Incerti-Medici Merlin
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Hyperfiniteness of boundary actions of acylindrically hyperbolic groups
Forum of Mathematics, SigmaWe prove that, for any countable acylindrically hyperbolic group G, there exists a generating set S of G such that the corresponding Cayley graph $\Gamma (G,S)$ is hyperbolic, $|\partial \Gamma (G,S)|>2$ , the natural action of G on ...
Koichi Oyakawa
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Uniform undistortion from barycentres, and applications to hierarchically hyperbolic groups
Analysis and Geometry in Metric SpacesWe show that infinite cyclic subgroups of groups acting uniformly properly on injective metric spaces are uniformly undistorted. In the special case of hierarchically hyperbolic groups, we use this to study translation lengths for actions on the ...
Abbott Carolyn +3 more
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On homeomorphisms and quasi-isometries of the real line [PDF]
, 2006 We show that the group of all pl-homeomorphisms of the reals having bounded slopes surjects on the group $QI({\Bbb R})$ of all quasi-isometries of ${\Bbb R}$.
Sankaran, Parameswaran
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Addendum to "Commensurations and Subgroups of Finite Index of Thompson's Group F"
, 2013 We show that the abstract commensurator of Thompson's group F is composed of four building blocks: two isomorphism types of simple groups, the multiplicative group of the positive rationals and a cyclic group of order two. The main result establishes the
Burillo, José +2 more
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Forum of Mathematics, SigmaWe compare the marked length spectra of some pairs of proper and cocompact cubical actions of a nonvirtually cyclic group on $\mathrm {CAT}(0)$ cube complexes.
Stephen Cantrell, Eduardo Reyes
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