Results 21 to 30 of about 467,085 (284)

Amenable groups and cellular automata [PDF]

open access: yesAnnales de l'Institut Fourier, 1999
We show that the theorems of Moore and Myhill hold for cellular automata whose universes are Cayley graphs of amenable finitely generated groups. This extends the analogous result of A. Machi and F. Mignosi “Garden of Eden configurations for cellular automata on Cayley graphs of groups” for groups of sub-exponential growth.
SCARABOTTI, Fabio   +2 more
openaire   +3 more sources

Socioeconomic inequalities in mortality from conditions amenable to medical interventions: do they reflect inequalities in access or quality of health care?

open access: yesBMC Public Health, 2012
Background Previous studies have reported large socioeconomic inequalities in mortality from conditions amenable to medical intervention, but it is unclear whether these can be attributed to inequalities in access or quality of health care, or to ...
Plug Iris   +16 more
doaj   +1 more source

Recurrent points and discrete points for elementary amenable groups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1992
Let βG be the Stone-Cech compactification of a group G, AG the set of all almost periodic points in βG, KG=cℓ[⋃{suppμφ:φ∈LIM(G)}] and RG the set of all recurrent points in βG.
Mostafa Nassar
doaj   +1 more source

Operator amenability of Fourier-Stieltjes algebras [PDF]

open access: yes, 2003
The notion of operator amenability was introduced by Z.-J. Ruan in 1995. He showed that a locally compact group G is amenable if and only if its Fourier algebra A(G) is operator amenable.
Runde, Volker, Spronk, Nico
core   +1 more source

Characterizations of Amenable Groups [PDF]

open access: yesTransactions of the American Mathematical Society, 1978
Generalizing a construction of Banach from 1923 we obtain new criteria for the amenability of a locally compact group G. The relationship of these new criteria to known characterizations is then investigated, and in particular a formally strenghthened version of the von Neumann/Dixmier condition for amenability is established.
openaire   +1 more source

Growth functions for some uniformly amenable groups

open access: yesOpen Mathematics, 2017
We present a simple constructive proof of the fact that every abelian discrete group is uniformly amenable. We improve the growth function obtained earlier and find the optimal growth function in a particular case.
Dronka Janusz   +3 more
doaj   +1 more source

A large class of sofic monoids [PDF]

open access: yes, 2014
We prove that a monoid is sofic, in the sense recently introduced by Ceccherini-Silberstein and Coornaert, whenever the J-class of the identity is a sofic group, and the quotients of this group by orbit stabilisers in the rest of the monoid are amenable.
Kambites, Mark
core   +2 more sources

An amenability-like property of finite energy path and loop groups

open access: yesComptes Rendus. Mathématique, 2021
We show that the groups of finite energy loops and paths (that is, those of Sobolev class $H^1$) with values in a compact connected Lie group, as well as their central extensions, satisfy an amenability-like property: they admit a left-invariant mean on ...
Pestov, Vladimir
doaj   +1 more source

Subsemigroups of Amenable Groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1969
Several authors have recently studied the problem of finding circumstances under which the amenability of a semigroup is inherited by a subsemigroup. It is known ([2] and [3]) that subgroups of an amenable group are amenable, but that in general subsemigroups of an amenable semigroup are not.
openaire   +1 more source

Genotype characterization and delayed loss of ambulation by glucocorticoids in a large cohort of patients with Duchenne muscular dystrophy

open access: yesOrphanet Journal of Rare Diseases, 2021
Background Duchenne muscular dystrophy (DMD) is the most common genetic muscle disease in human. We aimed to describe the genotype distribution in a large cohort of Chinese DMD patients and their delayed loss of ambulation by glucocorticoid (GC ...
Shu Zhang   +11 more
doaj   +1 more source

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