Results 51 to 60 of about 166 (137)

Yetter–Drinfeld Modules for Group-Cograded Hopf Quasigroups

open access: yesMathematics, 2022
Let H be a crossed group-cograded Hopf quasigroup. We first introduce the notion of p-Yetter–Drinfeld quasimodule over H. If the antipode of H is bijective, we show that the category YDQ(H) of Yetter–Drinfeld quasimodules over H is a crossed category ...
Huili Liu, Tao Yang, Lingli Zhu
doaj   +1 more source

Quasigroups and quandles

open access: yesDiscrete Mathematics, 1992
A quasigroup \((Q,.,\setminus,/)\) is a set \(Q\) equipped with three binary operations \(.,\setminus,/\) such that (1) \((x/y).y = x\), \((x.y)/y = x\), (2) \(x.(x\setminus y) = y\), \(x\setminus(x.y) = y\). A right quasigroup \((Q,.,/)\) is a set \(Q\) with two binary operations \(.,/\) satisfying (1). A right quasigroup fulfilling \(x.x = x\) and \((
openaire   +1 more source

Inverse Spectrum and Structure of Topological Metagroups

open access: yesMathematics
In this article, a structure of topological metagroups is scrutinized. Their inverse spectra are studied. This also permits us to construct abundant families of topological metagroups and quasigroups.
Sergey Victor Ludkowski
doaj   +1 more source

Quasigroups in cryptology [PDF]

open access: yesComputer Science Journal of Moldova, 2009
We give a review of some known published applications of quasigroups in cryptology.
V.A. Shcherbacov
doaj  

ARO-quasigroups

open access: yesQuasigroups and related systems, 2010
In this paper the concept of ARO-quasigroup is introduced and some identities which are valid in a general ARO-quasigroup are proved. The "geometric" concepts of midpoint, parallelogram and affine-regular octagon is introduced in a general ARO-quasigroup.
Kolar-Šuper, Ružica   +2 more
openaire   +2 more sources

Moufang Quasigroups

open access: yesJournal of Algebra, 1996
It is well known that the following four Moufang identities, M1: \((x(yz))x=(xy)(zx)\) and N1: \(((xy)z)y=x(y(zy))\) and their respective mirrors M2 and N2 (obtained by writing them backwards), are equivalent in loops which are then called Moufang loops. The author now shows that every quasigroup satisfying any one of these four identities is a Moufang
openaire   +2 more sources

Row‐Hamiltonian Latin squares and Falconer varieties

open access: yesProceedings of the London Mathematical Society, Volume 128, Issue 1, January 2024.
Abstract A Latin square is a matrix of symbols such that each symbol occurs exactly once in each row and column. A Latin square L$L$ is row‐Hamiltonian if the permutation induced by each pair of distinct rows of L$L$ is a full cycle permutation. Row‐Hamiltonian Latin squares are equivalent to perfect 1‐factorisations of complete bipartite graphs.
Jack Allsop, Ian M. Wanless
wiley   +1 more source

Finite automata over magmas: models and some applications in Cryptography [PDF]

open access: yesComputer Science Journal of Moldova, 2018
In the paper the families of finite semi-automata and reversible finite Mealy and Moore automata over finite magmas are defined and analyzed in detail.
Volodymyr V. Skobelev   +1 more
doaj  

LGS-quasigroups

open access: yesQuasigroups and related systems, 2009
The concept of a LGS-quasigroup is defined and investigated in this paper. The geometric concepts of parallelograms and midpoints are introduced in a general LGS-quasigroup and the geometrical interpretation in the LGS-quasigroup $C(\frac{;1};{;2};(3 + \sqrt 5))$ is given.
Kolar Begović, Zdenka   +1 more
openaire   +2 more sources

Graphs Connected to Isotopes of Inverse Property Quasigroups: A Few Applications

open access: yesJournal of Applied Mathematics, Volume 2024, Issue 1, 2024.
Many real‐world applications can be modelled as graphs or networks, including social networks and biological networks. The theory of algebraic combinatorics provides tools to analyze the functioning of these networks, and it also contributes to the understanding of complex systems and their dynamics.
Muhammad Nadeem   +3 more
wiley   +1 more source

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