Results 111 to 120 of about 18,324 (228)
Deficiency One Parallelisms of PG(5, 2)
MathematicsA spread in PG(n, q) is a set of lines such that each point is in exactly one line. A parallelism is a partition of the set of lines of PG(n, q) to spreads. A deficiency one parallelism is a parallelism with exactly one missing spread.
Svetlana Topalova, Stela Zhelezova
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Jordan automorphisms, Jordan derivations of generalized triangular matrix algebra
International Journal of Mathematics and Mathematical Sciences, 2005 We investigate Jordan automorphisms and Jordan derivations of a class of algebras called generalized triangular matrix algebras. We prove that any Jordan automorphism on such an algebra is either an automorphism or an antiautomorphism and any Jordan ...
Aiat Hadj Ahmed Driss +1 more
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On Automorphisms of Line-graphs
European Journal of Combinatorics, 1980 This paper generalizes some results on hypergraph reconstruction due to \textit{C. Berge} [C. R. Acad. Sci., Paris, Ser. A 274, 1783-1786 (1972; Zbl 0236.05129)] and \textit{J.C.Fournier} [Proc. 1rst Working Sem. Hypergraphs, Columbus 1972, Lecture Notes Math. 411, 95-98 (1974; Zbl 0302.05113)].
Péter L. Erdös, Zoltán Füredi
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Contributions to automorphisms of affine spaces [PDF]
, 2013 We study aspects of the group G_n of polynomial automorphisms of the affine space A^n, the so-called affine Cremona group. Shafarevich introduced on G_n the structure of an ind-variety, an infinite-dimensional analogon to a (classical) variety.
Stampfli, Immanuel
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A Note on Fuzzy Automorphism and Inner Automorphism of Groups [PDF]
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
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Involutions of the Moduli Space of Principal E6-Bundles over a Compact Riemann Surface
AxiomsIn this paper, the fixed points of involutions on the moduli space of principal E6-bundles over a compact Riemann surface X are investigated. In particular, it is proved that the combined action of a representative σ of the outer involution of E6 with ...
Álvaro Antón-Sancho
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Permutation matrices and matrix equivalence over a finite field
International Journal of Mathematics and Mathematical Sciences, 1981 Let F=GF(q) denote the finite field of order q and Fm×n the ring of m×n matrices over F. Let 𝒫n be the set of all permutation matrices of order n over F so that 𝒫n is ismorphic to Sn.
Gary L. Mullen
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Centralizers of automorphisms permuting free generators
Open Mathematics, 2019 By σ ∈ Skm we denote a permutation of the cycle-type km and also the induced automorphism permuting subscripts of free generators in the free group Fkm.
Macedońska Olga, Tomaszewski Witold
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Weakly dual automorphism invariant and superfluous cotightness
, 2020 The aim of the present paper is to introduce and study the dual concepts of weakly automorphism invariant modules and essential tightness. These notions are non-trivial generalizations of both weakly projectivity, dual automorphism invariant property and
Kosan, MUHAMMET TAMER +2 more
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Endomorphism near-rings of 𝑝-groups generated by the automorphism and inner automorphism groups
, 1993 The purpose of this paper is to investigate the equality of the endomorphism near-rings generated by the automorphism group and inner automorphism group of a nonabelian p p -group G G . If the automorphism group of
Gary L. Peterson
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