Results 31 to 40 of about 1,641,684 (283)

The braided Ptolemy-Thompson group is finitely presented

open access: yes, 2005
Pursueing our investigations on the relations between Thompson groups and mapping class groups, we introduce the group $T^*$ (and its further generalizations) which is an extension of the Ptolemy-Thompson group $T$ by means of the full braid group $B_ ...
Bezverkhniĭ   +15 more
core   +6 more sources

Some undecidability results for asynchronous transducers and the Brin-Thompson group 2V [PDF]

open access: yes, 2014
Using a result of Kari and Ollinger, we prove that the torsion problem for elements of the Brin-Thompson group 2V is undecidable. As a result, we show that there does not exist an algorithm to determine whether an element of the rational group R of ...
Belk, James, Bleak, Collin
core   +1 more source

Eight-year outcomes from the WHiTE3 HEMI trial: comparing the Thompson hemiarthroplasty with the Exeter polished tapered stem and Unitrax modular head in the treatment of displaced intracapsular hip fractures at a single centre

open access: yesBone & Joint Open
Aims: The WHiTE3:HEMI trial recruited patients with an intracapsular hip fracture to be randomized to receive the Thompson hemiarthroplasty or the Exeter stem and Unitrax modular head.
Ben Tyas   +7 more
doaj   +1 more source

Combinatorial properties of Thompson’s group 𝐹 [PDF]

open access: yesTransactions of the American Mathematical Society, 2003
We study some combinatorial consequences of Blake Fordham’s theorems on the word metric of Thompson’s group F F in the standard two generator presentation. We explore connections between the tree pair diagram representing an element w w of F F , its normal form in the infinite presentation, its word ...
Cleary, Sean, Taback, Jennifer
openaire   +3 more sources

The role of Thompson score of term newborns in predicting neuromotor outcome at 1 year of age

open access: yesAsian Journal of Medical Sciences
Background: The mortality rate is approximately 20% and the frequency of neurodevelopmental sequelae in surviving newborns is approximately 30% in perinatal asphyxia; hypoxic-ischemic encephalopathy (HIE) is brain dysfunction due to lack of oxygen and ...
Subham Puhan , Saugata Chaudhuri
doaj   +1 more source

(2+)-replication and the Baby Monster [PDF]

open access: yes, 2017
The definitions of replicable and completely replicable functions are intimately related to the Hecke operators for the modular group. We define the notions of "$(2+)$-replicable" and "completely $(2+)$-replicable" functions by considering the Hecke ...
Cummins, Chris, Matias, Rodrigo
core   +3 more sources

A Thompson Group for the Basilica

open access: yes, 2012
We describe a Thompson-like group of homeomorphisms of the Basilica Julia set. Each element of this group acts as a piecewise-linear homeomorphism of the unit circle that preserves the invariant lamination for the Basilica. We develop an analogue of tree
Belk, James, Forrest, Bradley
core   +1 more source

A block theoretic analogue of a theorem of Glauberman and Thompson [PDF]

open access: yes, 2003
If p is an odd prime, G a finite group and P a Sylow-p-subgroup of G, a theorem of Glauberman and Thompson states that G is p-nilpotent if and only if NG(Z(J(P))) is p-nilpotent, where J(P) is the Thompson subgroup of P generated by all abelian subgroups
Kessar, R., Linckelmann, M.
core   +2 more sources

Compact presentability of tree almost automorphism groups [PDF]

open access: yes, 2016
We establish compact presentability, i.e. the locally compact version of finite presentability, for an infinite family of tree almost automorphism groups.
Boudec, Adrien Le
core   +4 more sources

Automorphisms of Generalized Thompson Groups

open access: yesJournal of Algebra, 1998
DVI and Post-Script files ...
Brin, Matthew G., Guzmán, Fernando
openaire   +3 more sources

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