Results 101 to 110 of about 18,810 (231)

An application of the Sakai's theorem to the characterization of H*-algebras

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
The well-known Sakai's theorem, which states that every derivation acting on a von Neumann algebra is inner, is ,used to obtain a new elegant proof of the Saworotnow's characterization theorem for associative H*-algebras via two-sided H*-algebras.
Borut Zalar
doaj   +1 more source

Symplectic graphs and their automorphisms

open access: yesEuropean Journal of Combinatorics, 2006
12 ...
Zhongming Tang, Zhe-Xian Wan
openaire   +4 more sources

Nil sets defined through generalized skew derivations having a Jordan-like behavior

open access: yesMathematics Open
Let R be a prime ring of characteristic different from [Formula: see text], C its extended centroid, F and G non-zero generalized skew derivations of R, associated with the same automorphism [Formula: see text] of R and [Formula: see text] a fixed ...
Francesco Ammendolia   +1 more
doaj   +1 more source

The Cyclically Resolvable Steiner Triple Systems of Order 57

open access: yesMathematics
A resolution of a Steiner triple system of order v (STS(v)) is point-cyclic if it has an automorphism permuting the points in one cycle. An STS(v) is cyclically resolvable if it has at least one point-cyclic resolution. Cyclically resolvable STS(v)s have
Svetlana Topalova, Stela Zhelezova
doaj   +1 more source

Automorphism groups of some pure braid groups [PDF]

open access: yes, 2012
We find finite presentations for the automorphism group of the Artin pure braid group and the automorphism group of the pure braid group associated to the full monomial ...
Cohen, Daniel C.
core   +1 more source

Almost automorphic derivative of an almost automorphic function

open access: yesV. N. Karazin Kharkiv National University. Ser. Mathematics, Applied Mathematics and Mechanics, 2017
In this article are obtained conditions when the derivative of a continuous almost automorphic (an asymptotically almost automorphic, an almost periodic, an asymptotically almost periodic) function remains a continuous almost automorphic (an asymptotically almost automorphic, an almost periodic, an asymptotically almost periodic) function, respectively.
openaire   +3 more sources

Possible Groups of Automorphisms [PDF]

open access: yesProceedings of the National Academy of Sciences, 1943
Not ...
openaire   +2 more sources

A Note on Fuzzy Automorphism and Inner Automorphism of Groups [PDF]

open access: yes
The fuzzification of classical set theory came into existence when Zadeh [1] laid down the concept of a fuzzy set as a generalization of a crisp set.
Mittal, Gaurav   +3 more
core  

On (weakly) co-Hopfian automorphism-invariant modules

open access: yes, 2020
A module M over a ring R is called automorphism-invariant if M is invariant under automorphisms of its injective hull E(M) and M is called co-Hopfian if each injective endomorphism of M is an automorphism.
Abyzov, Adel   +2 more
core   +1 more source

On topological groups of automorphisms

open access: yesApplied General Topology
We study spaces X for which the space Homp(X) of automorphisms with the topology of point-wise convergence is a topological group. We identify large classes of spaces X for which Homp(X) is or is not a topological group.
Raushan Buzyakova
doaj   +1 more source

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