Results 31 to 40 of about 30,021 (207)
FREE GROUPS AND AUTOMORPHISM GROUPS OF INFINITE STRUCTURES
Forum of Mathematics, Sigma, 2014 Given a cardinal $\lambda $ with $\lambda =\lambda ^{\aleph _0}$
PHILIPP LÜCKE, SAHARON SHELAH
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On conjugacy of maximal abelian subalgebras and the outer automorphism group of the Cuntz algebra [PDF]
, 2015 We investigate the structure of the outer automorphism group of the Cuntz algebra and the closely related problem of conjugacy of maximal abelian subalgebras in On.
CONTI, ROBERTO +2 more
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On Inner Automorphisms of Finite Groups [PDF]
Proceedings of the American Mathematical Society, 1989 It is shown that in certain classes of finite groups, inner automorphisms are characterized by an extension property and also by a dual lifting property. This is a consequence of the fact that for any finite group G G and any prime p p , there is a p p -group P P and a semidirect ...
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Time-Dependent Pseudo-Hermitian Hamiltonians and a Hidden Geometric Aspect of Quantum Mechanics
Entropy, 2020 A non-Hermitian operator H defined in a Hilbert space with inner product 〈 · | · 〉 may serve as the Hamiltonian for a unitary quantum system if it is η -pseudo-Hermitian for a metric operator (positive-definite automorphism) η .
Ali Mostafazadeh
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Automorphisms of graph products of groups from a geometric perspective [PDF]
, 2019 This article studies automorphism groups of graph products of arbitrary groups. We completely characterise automorphisms that preserve the set of conjugacy classes of vertex groups as those automorphisms that can be decomposed as a product of certain ...
Genevois, Anthony, Martin, Alexandre
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Commutativity of automorphisms of subfactors modulo inner automorphisms [PDF]
Proceedings of the American Mathematical Society, 1996 We introduce a new algebraic invariant χ a ( M , N ) \chi _{a}(M,N) of a subfactor N ⊂ M N \subset M . We show that this is an abelian group and that if the subfactor is strongly amenable, then the group ...
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On normal automorphisms of n-periodic products of finite cyclic groups [PDF]
International Journal of Group Theory, 2013 We prove that each normal automorphism of the$n$-periodic product of cyclic groups of odd order$rge1003$ is inner, whenever $r$ divides $n$.
Ashot Pahlevanyan +3 more
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Separable subalgebras of a class of Azumaya algebras
International Journal of Mathematics and Mathematical Sciences, 1998 Let S be a ring with 1, C the center of S, G a finite automorphism group of S of order n invertible in S, and SG the subnng of elements of S fixed under each element in G. It is shown that the skew group ring S*G is a G′-Galois extension of (S*G)G′ that
George Szeto
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Deconfinement to confinement as PT phase transition
Nuclear Physics B, 2019 We consider SU(N) QCD in a new quadratic gauge which highlights certain characteristic of the theory in the non-perturbative sector. By considering natural hermiticity property of the ghost fields we cast this model as non-Hermitian but symmetric under ...
Haresh Raval, Bhabani Prasad Mandal
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Every group has a terminating transfinite automorphism tower
, 1998 The automorphism tower of a group is obtained by computing its automorphism group, the automorphism group of THAT group, and so on, iterating transfinitely.
Hamkins, Joel David
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