Results 21 to 30 of about 7,996 (229)

Maximal subgroups of infinite symmetric groups.

open access: yesNotre Dame Journal of Formal Logic, 1992
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Baumgartner, James E.   +2 more
openaire   +4 more sources

Constructions of positive commutative semigroups on the plane, II

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1985
A positive semiroup is a topological semigroup containing a subsemigroup N isomorphic to the multiplicative semigroup of nonnegative real numbers, embedded as a closed subset of E2 in such a way that 1 is an identity and 0 is a zero.
Reuben W. Farley
doaj   +1 more source

From Coxeter higher-spin theories to strings and tensor models

open access: yesJournal of High Energy Physics, 2018
A new class of higher-spin gauge theories associated with various Coxeter groups is proposed. The emphasize is on the B p -models. The cases of B 1 and its infinite graded-symmetric product sym (×B 1)∞ correspond to the usual higher-spin theory and its ...
M. A. Vasiliev
doaj   +1 more source

Diaquabis{[1-hydroxy-2-(1H-imidazol-3-ium-1-yl)ethane-1,1-diyl]bis(hydrogen phosphonato)}manganese(II)

open access: yesActa Crystallographica Section E, 2009
In the title compound, [Mn(C5H9N2O7P2)2(H2O)2], the MnII atom (site symmetry overline{1}) is coordinated by four phosphonate O atoms from a pair of partially deprotonated 1-hydroxy-2-(imidazol-3-yl)ethane-1,1-bisphophonic acid ligands (imhedpH3−
Yu Zhang, Rong-Qing Li, Zai-Chao Zhang
doaj   +1 more source

Closed Hulls in Infinite Symmetric Groups [PDF]

open access: yesTransactions of the American Mathematical Society, 1973
Let Sym ⁡ M
openaire   +2 more sources

The Index Problem for Infinite Symmetric Groups [PDF]

open access: yesProceedings of the American Mathematical Society, 1964
Let M be an infinite set with cardinal X, S(X, Y) = o-: ois a permutation on M such that I spt oj I d has no subgroups of index less than or equal Z. In this paper, the following generalization of these results is proven.
openaire   +1 more source

Subgroups of small Index in infinite Symmetric Groups

open access: yesBulletin of the London Mathematical Society, 1986
Let \(\Omega\) be an infinite set having cardinality \(n:=| \Omega |\), and let \(S:=Sym(\Omega)\) be its symmetric group having then cardinality \(2^ n\). Moreover, let G be a subgroup of S and let \(S_{\{\Delta \}}\) or \(G_{\{\Delta \}}\) be the setwise stabilizer of \(\Delta\) in S or in G, respectively, for each subset \(\Delta\subseteq \Omega ...
Dixon, J, Neumann, P, Thomas, S
openaire   +3 more sources

Analyticity of the entropy and the escape rate of random walks in hyperbolic groups

open access: yesDiscrete Analysis, 2017
Analyticity of the entropy and the escape rate of random walks in hyperbolic groups, Discrete Analysis 2017:7, 37pp. Let $\mu$ be a probability measure on an infinite finitely generated group $G$.
Sebastien Gouezel
doaj   +1 more source

Uniformization Problems and the Cofinality of the Infinite Symmetric Group

open access: yesNotre Dame Journal of Formal Logic, 1994
For a group \(G\) which is not finitely generated, the cofinality of \(G\), written \(c(G)\), is defined to be the least cardinal \(\lambda\) such that \(G\) is the union of a chain of \(\lambda\) proper subgroups. For an infinite cardinal \(\kappa\), denote \(c(\text{Sym}(\kappa))\) by \(c_ \kappa\). \textit{H. D. Macpherson} and \textit{P. M. Neumann}
James D. Sharp, Simon Thomas 0001
openaire   +3 more sources

Diversity and complexity in neural organoids

open access: yesFEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

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