Results 11 to 20 of about 1,288,795 (193)
Isomorphism classes of idempotent evolution algebras [PDF]
Linear Algebra and its Applications, 2023 We showed that isomorphism classes of idempotent evolution algebras are in bijection with the orbits of the semidirect product group of the symmetric group and the torus, considered the combinatoric problem of enumeration of isomorphism classes for these algebras over arbitrary finite fields, derived a general counting formula, and obtained explicit ...
Yangjiang Wei, Yi Ming Zou
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Computation of Isomorphism Classes of p-Groups [PDF]
Mathematics of Computation, 1969 p p -groups may be classified by splitting the groups up into classes having the same commutator relations (isoclinism classes) and then ...
James, Rodney, Cannon, John
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Isomorphism Classes of Concrete Graph Coverings
SIAM Journal on Discrete Mathematics, 1998 \textit{M. Hofmeister} introduced the notion of a concrete (resp., concrete regular) covering of a graph \(G\) and gave formulas for enumerating the isomorphism classes of concrete (resp., concrete regular) coverings of \(G\) with respect to a group of automorphisms of a given base graph; see Ars Comb.
Feng, RQ, Kwak, JH, Kim, J, Lee, J
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Isomorphism classes of cycle permutation graphs [PDF]
Discrete Mathematics, 1992 G. Chartrand and F. Harary introduced permutation graphs as a generalization of the well-known Petersen graph. The authors construct a cycle permutation graph as a covering graph over the dumbbell graph. They also give a new characterization of the case when two given cycle permutation graphs are isomorphic by a positive or a negative natural ...
KWAK, JH, LEE, J
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Isomorphism classes of authentication codes [PDF]
Bulletin of the Australian Mathematical Society, 2004 In this paper, we give several kinds of characterisations of isomorphic authentication codes by examining a correspondence between optimal authentication codes and some combinatorial designs. The isomorphism classes of some kinds of authentication codes are also enumerated.
Feng, RQ, Kwak, JH, Lloyd, EK
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Isomorphism Classes of Solenoidal Algebras I
Canadian Mathematical Bulletin, 1993 AbstractEach g ∊ ℤ[x] defines a homeomorphism of a compact space We investigate the isomorphism classes of the C*-crossed product algebra Bg associated with the dynamical system An isomorphism invariant Eg of the algebra Bg is shown to determine the algebra Bg up to * or * anti-isomorphism if degree g ≤ 1 and 1 is not a root of g or if degree g = 2 ...
Berndt Brenken
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On Graph Isomorphism for Restricted Graph Classes [PDF]
, 2006 Graph isomorphism (GI) is one of the few remaining problems in NP whose complexity status couldn't be solved by classifying it as being either NP-complete or solvable in P. Nevertheless, efficient (polynomial-time or even NC) algorithms for restricted versions of GI have been found over the last four decades.
Johannes Köbler
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Isomorphism problems of noncommutative deformations of type $D$ Kleinian singularities [PDF]
, 2009 We construct all possible noncommutative deformations of a Kleinian singularity ${\mathbb C}^2/\Gamma$ of type $D_n$ in terms of generators and relations, and solve the isomorphism problem for the associative algebras thus constructed.
Levy, Paul
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On the Isomorphism Classes of Transversals [PDF]
Communications in Algebra, 2008 9 ...
Jain, V. K., Shukla, R. P.
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On the number of isomorphism classes of transversals [PDF]
Proceedings - Mathematical Sciences, 2013 In this paper we prove that there does not exist a subgroup $H$ of a finite group $G$ such that the number of isomorphism classes of normalized right transversals of $H$ in $G$ is four.
Kakkar, Vipul, Shukla, R. P.
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