Results 91 to 100 of about 104,157 (229)
Noninner automorphisms of finite p-groups leaving the center elementwise fixed [PDF]
A longstanding conjecture asserts that every finite nonabelian p-group admits a noninner automorphism of order p. Let G be a finite nonabelian p-group.
Alireza Abdollahi, S. Mohsen Ghoraishi
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Finite Vertex Bi-Primitive 2-Arc Transitive Graphs Admitting a Two-Dimensional Linear Group
A graph is said to be vertex bi-primitive, if it is a bipartite graph, and the setwise stabilizer of its automorphism group acts primitively on two bi-parts.
Xiaohui Hua
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Automorphisms of monomial groups [PDF]
Dissertation (Ph. D.)--University of Kansas, Mathematics, 1955.
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The automorphism group of the tetrablock [PDF]
The tetrablock is a domain in 3-dimensional complex space that meets 3-dimensional Euclidean space in a regular tetrahedron. It is shown to be inhomogeneous and its automorphism group is determined. A type of Schwarz lemma for the tetrablock is proved.
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On Azumaya algebras with a finite automorphism group
Let B be a ring with 1, C the center of B, and G a finite automorphism group of B. It is shown that if B is an Azumaya algebra such that B=⊕∑g∈GJg where Jg={b∈B|bx=g(x)b for all x∈B}, then there exist orthogonal central idempotents {fi∈C|i=1,2,…,m ...
George Szeto, Lianyong Xue
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A determinant for automorphisms of groups
Let $H$ and $K$ be groups. In this paper we introduce a concept of determinant for automorphisms of $H\times K$ and some concepts of incompatibility for group pairs as a measure of how much $H$ and $K$ are fare from being isomorphic. With the aid of the tools developed from these definitions, we give a characterisation of invertible automorphisms of $H\
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Remark on automorphisms of groups [PDF]
5. N. Jacobson, Structure of rings, Amer. Math. Soc. Colloquium Publications, vol. 37, 1956. 6. F. Kasch, Uber den Endomorphismring eines Vektoraumes und den Satz von der Normal basis, Math. Ann. vol. 126 (1953) pp. 447-463. 7. T. Nakayama, Normal basis of a quasi-field, Proc. Imp. Acad. Tokyo vol. 16 (1940) pp. 532-536. 8.
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The group of automorphism of the Fermat curve
Pavlos Tzermias en su artí ulo The group of automorphisms of the Fermat urve (ver [7℄), prueba que el grupo de automorfismos de las urvas de Fermat proye tivas en ara terísti a 0 es el produ to semidire to de la suma dire ta de 2 opias del grupo í li o ...
Marby Bolaños Ortiz+2 more
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On central endomorphisms of a group [PDF]
Let Γ be a normal subgroup of the full automorphism group Aut(G) of a group G , and assume that Inn(G)≤Γ . An endomorphism σ of G is said to be {\it Γ -central} if σ induces the the identity on the factor group G/C G (Γ) .
Alessio Russo
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The group of causal automorphisms [PDF]
The group of causal automorphisms on Minkowski space-time is given and its structure is analyzed.
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