Results 41 to 50 of about 30,772 (141)

Sperm whale hotspots off western Ireland and the importance of dynamic variables as shown by a multiscale Bayesian additive regression trees workflow

Frontiers in Marine Science
Species distribution models are increasingly used to understand species’ environmental preferences and habitat use as a means to inform management decisions.
Cynthia Barile, Simon Berrow, Simon Berrow, Jonathan Gordon, Rossa Meade, Morgane Pommier, Joanne O’Brien   +6 more
doaj   +1 more source

Limit groups and groups acting freely on ℝⁿ–trees [PDF]

Geometry & Topology, 2004
Published by Geometry and Topology at http://www.maths.warwick.ac.uk/gt/GTVol8/paper39.abs ...
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RADU GROUPS ACTING ON TREES ARE CCR

Journal of the Australian Mathematical Society
AbstractWe classify the irreducible unitary representations of closed simple groups of automorphisms of trees acting $2$ -transitively on the boundary and whose local action at every vertex contains the alternating group. As an application, we confirm Claudio Nebbia’s CCR conjecture on trees for $(d_0,d_1)$ -semi-regular trees such that $d_0,d_1\in \
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Infinite conjugacy classes in groups acting on trees

Groups, Geometry, and Dynamics, 2009
We characterize amalgams and HNN extensions with infinite conjugacy classes.
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Finitely Presented Groups Acting on Trees

, 2012
It is shown that for any action of a finitely presented group $G$ on an $\R$-tree, there is a decomposition of $G$ as the fundamental group of a graph of groups related to this action. If the action of $G$ on $T$ is non-trivial, i.e. there is no global fixed point, then $G$ has a non-trivial action on a simplcial $\R $-tree.
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Amenability of groups acting on trees

, 2002
19 pages, 8 PostScript ...
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Burnside groups and groups acting on rooted trees

Advances in Group Theory and Applications
This article provides a broad and accessible survey of the interplay between Burnside groups and groups acting on rooted trees, with a focus on branch and weakly branch groups. After a historical introduction to various versions of the Burnside problem, the author presents the structural properties of groups acting on regular rooted trees, including ...
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Locally compact groups acting on trees and propertyT

Monatshefte f�r Mathematik, 1982
FollowingKazhdan, a separable locally compact groupG is said to have propertyT if the trivial representation is isolated in the dual space,Ĝ, of equivalence classes of continuous irreducible unitary representations ofG. We generalize results ofMargulis—Tits by showing that groups which have propertyT can not be amalgams.
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Groups acting freely on $\Lambda$-trees

, 2009
Comment: 33 pages, 6 ...
Kharlampovich, O., Myasnikov, A., Serbin, D.   +2 more
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Transitive primitive permutation groups acting on trees

Journal of Algebra, 1992
Let \(\Omega\) be a tree having no maximal elements. The automorphism group \(\text{Aut}(\Omega)\) and certain of its large subgroups \(G\) (those closed under ``patching'') are studied, building on work by \textit{M. Droste} [Mem. Am. Math. Soc. 334 (1981; Zbl 0574.06001)] and by \textit{M. Droste, W. C. Holland}, and \textit{H. D.
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