Results 51 to 60 of about 87 (78)
© Hindawi Publishing Corp. ON CENTRALIZERS OF ELEMENTS OF GROUPS ACTING ON TREES WITH INVERSIONS
, 2002 A subgroup H of a group G is called malnormal in G if it satisfies the condition that if g ∈G and h∈H, h ≠ 1 such that ghg−1 ∈H, then g ∈H. In this paper, we show that if G is a group acting on a tree X with inversions such that each edge stabilizer is ...
R. M. S. Mahmood
core
Lattices in a product of trees, hierarchically hyperbolic groups and virtual torsion-freeness. [PDF]
Bull Lond Math Soc, 2022 Hughes S.
europepmc +1 more source
Micro-CT evaluation of historical human skulls presenting signs of syphilitic infection. [PDF]
Wien Klin Wochenschr, 2021 Fraberger S +6 more
europepmc +1 more source
On the quasi-isometric and bi-Lipschitz classification of 3D Riemannian Lie groups. [PDF]
Geom Dedic, 2021 Fässler K, Le Donne E.
europepmc +1 more source
Discrete Morse theory and graph braid group, Algebraic and
, 2014 If Γ is any finite graph, then the unlabelled configuration space of n points on Γ, denoted UC n Γ, is the space of n-element subsets of Γ. The braid group of Γ on n strands is the fundamental group of UC n Γ.
Daniel Farley, Lucas Sabalka
core
Discrete Morse theory and graph braid groups
, 2005 If Γ is any finite graph, then the unlabelled configuration space of n points on Γ, denoted UC n Γ, is the space of n-element subsets of Γ. The braid group of Γ on n strands is the fundamental group of UC n Γ.
Daniel Farley, Lucas Sabalka
core
Uniformly exponential growth and mapping class groups of surfaces
, 2006 We show that the mapping class group (as well as closely related groups) of an orientable surface with finitely generated fundamental group has uniformly exponential growth.
Javier Aramayona +2 more
core
Morse subsets of CAT(0) spaces are strongly contracting. [PDF]
Geom Dedic, 2020 Cashen CH.
europepmc +1 more source
The curve complex has dead ends
It is proved that the curve graph C 1 (Σ) of a surface Σg,n has a local pathology that had not been identified as such: there are vertices α,β ∈ C 1 (Σ) such that β is a dead end of every geodesic joining α to β. There are also double dead-ends.
William W. Menasco, Joan S. Birman
core