Results 111 to 120 of about 2,503,474 (234)

On nilpotent subsemigroups of the matrix semigroup over an antiring

open access: yesLinear Algebra and its Applications, 2011
A semiring is an algebraic system \((R,+,\cdot)\) such that \((R,+)\) is a commutative semigroup with identity \(0\), \((R,\cdot)\) is a semigroup with identity \(1\), and ring-like distributivity holds. It is also assumed that \(0r=r0=0\) for all \(r\in R\) and that \(0\neq 1\).
openaire   +2 more sources

Cohomological dimension and arithmetical rank of some determinantal ideals

open access: yesLe Matematiche, 2015
Let M be a (2 × n) non-generic matrix of linear forms in a polynomial ring. For large classes of such matrices, we compute the cohomological dimension (cd) and the arithmetical rank (ara) of the ideal I_2(M) generated by the 2-minors of M.
Davide Bolognini   +3 more
doaj  

Commentary: Multidimensional discrete chaotic maps

open access: yesFrontiers in Physics, 2022
Rasa Smidtaite, Minvydas Ragulskis
doaj   +1 more source

Graded hypoellipticity of BGG sequences. [PDF]

open access: yesAnn Glob Anal Geom (Dordr), 2022
Dave S, Haller S.
europepmc   +1 more source

Discrete–Time Linear Systems with Desired Poles and Zeros of the Transfer Matrices

open access: yesInternational Journal of Applied Mathematics and Computer Science
Methods for the design of discrete-time linear systems with desired poles and zeros of their transfer matrices are proposed. Conditions for the existence of the solution to the problem and the procedures for computation of the desired matrices are given.
Kaczorek Tadeusz, Sajewski Łukasz
doaj   +1 more source

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