Results 31 to 40 of about 322,239 (148)

Asymptotically fast group operations on Jacobians of general curves

open access: yes, 2006
Let $C$ be a curve of genus $g$ over a field $k$. We describe probabilistic algorithms for addition and inversion of the classes of rational divisors in the Jacobian of $C$.
Khuri-Makdisi, Kamal
core   +2 more sources

Zero Triple Product Determined Matrix Algebras

open access: yesJournal of Applied Mathematics, 2012
Let A be an algebra over a commutative unital ring C. We say that A is zero triple product determined if for every C-module X and every trilinear map {⋅,⋅,⋅}, the following holds: if {x,y,z}=0 whenever xyz=0, then there exists a C-linear operator T:A3⟶X ...
Hongmei Yao, Baodong Zheng
doaj   +1 more source

Biderivations and linear commuting maps on simple generalized Witt algebras over a field

open access: yesThe Electronic Journal of Linear Algebra, 2016
Let $\mathfrak{W}$ be a simple generalizedWitt algebras over a field of characteristic zero. In this paper, weprove that each anti-symmetric biderivation of $\mathfrak{W}$ isinner. As an application of biderivations, we show that a linear map$\psi$ on $\mathfrak{W}$ is commuting if and only if $\psi$ is ascalar multiplication map on $\mathfrak{W}$. The
openaire   +2 more sources

Monomial codes seen as invariant subspaces

open access: yesOpen Mathematics, 2017
It is well known that cyclic codes are very useful because of their applications, since they are not computationally expensive and encoding can be easily implemented. The relationship between cyclic codes and invariant subspaces is also well known.
García-Planas María Isabel   +2 more
doaj   +1 more source

The symplectic ideal and a double centraliser theorem

open access: yes, 2007
Let G be a reductive connected linear algebraic group over an algebraically closed field of positive characteristic and let g be its Lie algebra. First we correct and generalise a well-known result about the Picard group of G.
Tange, Rudolf
core   +3 more sources

Complexity calculation of coding and information security system based on threshold secret sharing scheme used for electronic voting

open access: yesAdvanced Engineering Research, 2017
Introduction . One of the tasks arising in cryptography is to ensure the safe and honest conduct of e-voting. This procedure provides that voters submit their votes electronically - for example, through electronic terminals.
Larisa V. Cherkesova   +3 more
doaj   +1 more source

Extended binary Golay codes by a group algebra of one group

open access: yesНауковий вісник Ужгородського університету. Серія: Математика і інформатика, 2020
Extended binary Golay codes are examples of extreme binary self-dual codes of Type II (linear binary self-dual codes with Hamming distance between arbitrary codewords which are multiples of 4 that has the highest possible minimum Hamming distance among ...
М. Ю. Бортош   +1 more
doaj   +1 more source

Black box linear algebra

open access: yesACM Communications in Computer Algebra, 2017
Wiedemann's paper, introducing his algorithm for sparse and structured matrix computations over arbitrary fields, also presented a pair of matrix preconditioners for computations over small fields. The analysis of the second of these is extended here in order to provide more explicit statements of the expected number of nonzero entries in the matrices ...
openaire   +2 more sources

Distinguished principal series representations for GLn over a p-adic field [PDF]

open access: yes, 2008
In the following article, we give a description of the distingushed irreducible principal series representations of the general linear group over a p-adic field in terms of inducing datum.
Matringe, Nadir
core   +2 more sources

Computation with Polynomial Equations and Inequalities arising in Combinatorial Optimization

open access: yes, 2009
The purpose of this note is to survey a methodology to solve systems of polynomial equations and inequalities. The techniques we discuss use the algebra of multivariate polynomials with coefficients over a field to create large-scale linear algebra or ...
A Kehrein   +19 more
core   +2 more sources

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