Results 11 to 20 of about 142,721 (259)
On the Isomorphism Classes of Transversals [PDF]
Communications in Algebra, 2008 9 ...
Jain, V. K., Shukla, R. P.
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The Structure of Local Rings with Singleton Basis and Their Enumeration
Mathematics, 2022 A local ring is an associative ring with unique maximal ideal. We associate with each Artinian local ring with singleton basis four invariants (positive integers) p,n,s,t.
Yousef Alkhamees, Sami Alabiad
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Isomorphisms Between Big Mapping Class Groups [PDF]
International Mathematics Research Notices, 2018 Abstract We show that any isomorphism between mapping class groups of orientable infinite-type surfaces is induced by a homeomorphism between the surfaces. Our argument additionally applies to automorphisms between finite-index subgroups of these “big” mapping class groups and shows that each finite-index subgroup has finite outer ...
Bavard, Juliette +2 more
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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 determining the nonisomorphic groups in each class. This paper reduces the problem of determining the isomorphism classes to that of finding the equivalence classes of a set of matrices under some ...
James, Rodney, Cannon, John
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The classification of three-dimensional Lie algebras on complex field
Дифференциальная геометрия многообразий фигур, 2021 In this paper, we study the classification of three-dimensional Lie algebras over a field of complex numbers up to isomorphism. The proposed classification is based on the consideration of objects invariant with respect to isomorphism, namely such ...
E.R. Shamardina
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Generation of colored graphs with isomorphism rejection [PDF]
Известия Саратовского университета. Новая серия: Математика. Механика. Информатика, 2021 In the article we consider graphs whose vertices or edges are colored in a given number of colors — vertex and edge colorings. The study of colorings of graphs began in the middle of the 19th century, but the main attention is paid to proper ...
Razumovsky, Peter Vladimirovich +1 more
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Towards an Isomorphism Dichotomy for Hereditary Graph Classes [PDF]
, 2014 In this paper we resolve the complexity of the isomorphism problem on all but finitely many of the graph classes characterized by two forbidden induced subgraphs.
Schweitzer, Pascal
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Formulas and Properties, Their Links and Characteristics
Mathematics, 2021 In this work, we study links between first-order formulas and arbitrary properties for families of theories, classes of structures and their isomorphism types.
Sergey V. Sudoplatov
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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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The Isomorphism Problem for Computable Abelian p-Groups of Bounded Length [PDF]
, 2004 Theories of classification distinguish classes with some good structure theorem from those for which none is possible. Some classes (dense linear orders, for instance) are non-classifiable in general, but are classifiable when we consider only countable ...
Calvert, Wesley
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