Results 91 to 100 of about 2,017 (174)

An Application of Co-Medial Algebras with Quasigroup Operations on Cryptology

open access: yes, 2014
A modification of Markovski quasigroup based crypto-algorytm has been presented. This modification is based on the pair of co-medial quasigroup operations, which we show that they are orthogonal quasigroup operations.
A. Ehsani
semanticscholar   +1 more source

Pentagonal quasigroups [PDF]

open access: yesQuasigroups and related systems, 2011
In this paper the concept of pentagonal quasigroup is introduced as {; ; ; IM}; ; ; -quasigroup satisfying the additional property of pentagonality. Some basic identities which are valid in a general pentagonal quasigroup are proved. Four different models for pentagonal quasigroups and their mutual relations are studied.
openaire   +3 more sources

Parastrophes of quasigroups

open access: yes, 2015
Parastrophes (conjugates) of a quasigroup can be divided into separate classes containing isotopic parastrophes. We prove that the number of such classes is always 1, 2, 3 or 6. Next we characterize quasigroups having a fixed number of such classes.
openaire   +3 more sources

The Universality of the variety of quasigroups [PDF]

open access: yesJournal of the Australian Mathematical Society, 1976
AbstractThe variety of quasigroups is universal for varieties of algebras of the most general kind in the sense that each such variety can be interpreted in a natural way in a suitably chosen subvariety of quasigroups. More precisely, for any algebra〈A, f0, f1, f2, …〉wheref0, f1, f2, …is an arbitrary finite or infinite sequence of operations of finite ...
openaire   +2 more sources

The Burnside algebra of a quasigroup

open access: yesJournal of Algebra, 2004
In this paper the author extends the Burnside algebra concept from groups to quasigroups. Given a subquasigroup \(P\) of a finite quasigroup \(Q\), the elements of the corresponding homogeneous space \(P\setminus Q\) are the orbits on \(Q\) of the relative left multiplication group of \(P\) in \(Q\).
openaire   +1 more source

Weak Hopf quasigroups

open access: yesAsian Journal of Mathematics, 2016
In this paper we introduce the notion of weak Hopf quasigroup as a generalization of weak Hopf algebras and Hopf quasigroups. We obtain its main properties and we prove the fundamental theorem of Hopf modules for these algebraic structures.
Álvarez, J. N. Alonso   +2 more
openaire   +2 more sources

Representation of a gauge field via intrinsic “BRST” operator

open access: yesPhysics Letters B, 2015
We show that there exists a representation of a matrix-valued gauge field via intrinsic “BRST” operator assigned to matrix-valued generators of a gauge algebra. In this way, we reproduce the standard formulation of the ordinary Yang–Mills theory.
Igor A. Batalin, Peter M. Lavrov
doaj   +1 more source

Quasigroups, right quasigroups, coverings and representations

open access: yes, 2018
For a fixed quasigroup Q, equivalences are established between the following categories: (i) the category of modules over the quasigroup; (ii) the category of representations of a stabilizer in the universal multiplication group; (iii) the category of representations of the fundamental groupoid of the Cayley diagram of the quasigroup in the category of
openaire   +3 more sources

Note on Quasigroups and Trees [PDF]

open access: yesProceedings of the Edinburgh Mathematical Society, 1963
If letters a, b, c, … are used to denote points of a nondegenerate plane cubic curve, other than the singular point if any, and if the product ab is defined as the third point of the curve collinear with a and b, we obtain an algebraic system having nonassociative multiplication (ab . c ≠ a . bc in general).
openaire   +2 more sources

Quantum quasigroups and loops

open access: yesJournal of Algebra, 2016
A quantum quasigroup is a family \((A,\nabla,\Delta)\), where \((A,\nabla)\) is a magma in a given symmetric monoidal category, \((A,\Delta)\) is a comagma in the same category, such that the compositions \((\Delta\otimes 1_A)\circ(1_A\otimes\nabla)\) and \((1_A\otimes\Delta)(\nabla\otimes 1_A)\) are invertible.
openaire   +2 more sources

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