Results 51 to 60 of about 13,348,296 (358)
Covering monolithic groups with proper subgroups [PDF]
International Journal of Group Theory, 2013 Given a finite non-cyclic group $G$, call $sigma(G)$ the smallest number of proper subgroups of $G$ needed to cover $G$. Lucchini and Detomi conjectured that if a nonabelian group $G$ is such that $sigma(G) < sigma(G/N)$ for every non-trivial normal ...
Martino Garonzi
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2-closures of primitive permutation groups of holomorph type
Open Mathematics, 2019 The 2-closure G(2) of a permutation group G on a finite set Ω is the largest subgroup of Sym(Ω) which has the same orbits as G in the induced action on Ω × Ω.
Yu Xue, Pan Jiangmin
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The physical capacity of different professional groups of Brazilian Amazonians, studied by cycle ergometry () [PDF]
Acta Amazonica, 1978 A study of the physical performance of seven different professional groups living in the Brazilian Amazon was performed. The level of the physical capacity was measured using the ergometric bicycle.
F. L. Vichi, J. M. Souza
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Whitehead groups of exchange rings with primitive factors artinian
International Journal of Mathematics and Mathematical Sciences, 2001 We show that if R is an exchange ring with primitive factors artinian then K1(R)≅U(R)/V(R), where U(R) is the group of units of R and V(R) is the subgroup generated by {(1+ab)(1+ba)−1|a,b∈R with 1+ab∈U(R)}.
Huanyin Chen, Fu-an Li
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The Sum of a Finite Group of Weights of a Hopf Algebra
Axioms, 2012 Motivated by the orthogonality relations for irreducible characters of a finite group, we evaluate the sum of a finite group of linear characters of a Hopf algebra, at all grouplike and skew-primitive elements.
Apoorva Khare
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Simply transitive primitive groups [PDF]
Transactions of the American Mathematical Society, 1927 1. The transitive constituents of the subgroup that leaves fixed one letter of a transitive group occur in pairs of equal degree. Transitive constituents on one letter are to be taken into account in the above statement. The two members of a pair sometimes coincide. This important property of transitive groups was proved by means of a certain quadratic
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The effect of aqueous alteration and metamorphism in the survival of presolar silicate grains in chondrites [PDF]
, 2008 Relatively small amounts (typically between 2-200 parts per million) of presolar grains have been preserved in the matrices of chondritic meteorites.
Bischoff +31 more
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Counting Primitive Elements in Free Groups [PDF]
Geometriae Dedicata, 2001 Primitive elements in free groups are those elements that can be part of a free basis of the group. The purpose of this paper is to study the distribution of the primitive elements inside of a free group. The way for doing this is to relate them to the concentric balls of elements.
Burillo, J., Ventura, E.
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Most primitive groups are full automorphism groups of edge-transitive hypergraphs [PDF]
, 2014 We prove that, for a primitive permutation group G acting on a set of size n, other than the alternating group, the probability that Aut(X,Y^G) = G for a random subset Y of X, tends to 1 as n tends to infinity.
Babai, Laszlo, Cameron, Peter J.
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Primitive elements in free groups [PDF]
Proceedings of the American Mathematical Society, 1989 Let F n {F_n} denote the free group of rank n n generated by x 1 , x 2 , … , x n ...
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