Results 11 to 20 of about 322,239 (148)

Group codes over binary tetrahedral group

open access: yesJournal of Mathematical Cryptology, 2022
In this article, the group algebra K[T]{\mathcal{K}}\left[{\mathscr{T}}] of the binary tetrahedral group T{\mathscr{T}} over a splitting field K{\mathcal{K}} of T{\mathscr{T}} with char(K)≠2,3{\rm{char}}\left({\mathcal{K}})\ne 2,3 is studied and the ...
Dadhwal Madhu, Pankaj
doaj   +1 more source

Description of the automorphism groups of some Leibniz algebras

open access: yesResearches in Mathematics, 2023
Let $L$ be an algebra over a field $F$ with the binary operations $+$ and $[,]$. Then $L$ is called a left Leibniz algebra if it satisfies the left Leibniz identity: $[[a,b],c]=[a,[b,c]]-[b,[a,c]]$ for all elements $a,b,c\in L$.
L.A. Kurdachenko, O.O. Pypka, M.M. Semko
doaj   +1 more source

A standard form in (some) free fields: How to construct minimal linear representations

open access: yesOpen Mathematics, 2020
We describe a standard form for the elements in the universal field of fractions of free associative algebras (over a commutative field). It is a special version of the normal form provided by Cohn and Reutenauer and enables the use of linear algebra ...
Schrempf Konrad
doaj   +1 more source

Speed of convergence of complementary probabilities on finite group

open access: yesVisnik Harkivsʹkogo Nacionalʹnogo Universitetu im. V.N. Karazina. Cepiâ Matematika, Prikladna Matematika i Mehanika, 2021
Let function P be a probability on a finite group G, i.e. $P(g)\geq0\ $ $(g\in G),\ \sum\limits_{g}P(g)=1$ (we write $\sum\limits_{g}$ instead of $\sum\limits_{g\in G})$.
Alexander Vyshnevetskiy
doaj   +1 more source

Coalgebras for Bisimulation of Weighted Automata over Semirings [PDF]

open access: yesLogical Methods in Computer Science, 2023
Weighted automata are a generalization of nondeterministic automata that associate a weight drawn from a semiring $K$ with every transition and every state.
Purandar Bhaduri
doaj   +1 more source

Integrals in Hopf algebras over rings [PDF]

open access: yes, 2003
Integrals in Hopf algebras are an essential tool in studying finite dimensional Hopf algebras and their action on algebras. Over fields it has been shown by Sweedler that the existence of integrals in a Hopf algebra is equivalent to the Hopf algebra ...
Lomp, Christian
core   +2 more sources

A Computer Algebra System for R: Macaulay2 and the m2r Package

open access: yesJournal of Statistical Software, 2020
Algebraic methods have a long history in statistics. Apart from the ubiquitous applications of linear algebra, the most visible manifestations of modern algebra in statistics are found in the young field of algebraic statistics, which brings tools from ...
David Kahle   +2 more
doaj   +1 more source

Almost Settling the Hardness of Noncommutative Determinant [PDF]

open access: yes, 2011
In this paper, we study the complexity of computing the determinant of a matrix over a non-commutative algebra. In particular, we ask the question, "over which algebras, is the determinant easier to compute than the permanent?" Towards resolving this ...
Chien, Steve   +3 more
core   +2 more sources

Feynman integral reduction using Gröbner bases

open access: yesJournal of High Energy Physics, 2023
We investigate the reduction of Feynman integrals to master integrals using Gröbner bases in a rational double-shift algebra Y in which the integration-by-parts (IBP) relations form a left ideal.
Mohamed Barakat   +4 more
doaj   +1 more source

Application of automorphic forms to lattice problems

open access: yesJournal of Mathematical Cryptology, 2022
In this article, we propose a new approach to the study of lattice problems used in cryptography. We specifically focus on module lattices of a fixed rank over some number field.
Düzlü Samed, Krämer Juliane
doaj   +1 more source

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