Results 21 to 30 of about 172 (46)

LIFTED CODES OVER FINITE CHAIN RINGS [PDF]

open access: yes, 2011
In this paper, we study lifted codes over finite chain rings.
Dougherty, Steven T.   +2 more
core   +1 more source

On the imbedding of a direct product into a zero-dimensional commutative ring

open access: yes, 1989
This paper addresses questions related to results of M. Arapovic concerning imbeddability of a commutative unitary ring R in a zero-dimensional ring. The case where R is a product of zero-dimensional rings is of special interest.
R. Gilmer, W. Heinzer
semanticscholar   +1 more source

On Linear Differential Equations Involving a Para-Grassmann Variable [PDF]

open access: yes, 2009
As a first step towards a theory of differential equations involving para-Grassmann variables the linear equations with constant coefficients are discussed and solutions for equations of low order are given explicitly.
Mansour, Toufik, Schork, Matthias
core   +5 more sources

Commutativity of endomorphism rings of ideals. II

open access: yes, 1976
Let R be a commutative ring. In (1), it was proved that a ring R with noetherian total quotient ring is self-injective if and only if the endomorphism ring of every ideal is commutative.
S. Alamelu
semanticscholar   +1 more source

Plethystic algebra [PDF]

open access: yes, 2004
The notion of a Z-algebra has a non-linear analogue, whose purpose it is to control operations on commutative rings rather than linear operations on abelian groups.
Borger, James, Wieland, Ben
core   +2 more sources

Diameter and girth of Torsion Graph

open access: yesAnalele Stiintifice ale Universitatii Ovidius Constanta: Seria Matematica, 2014
Let R be a commutative ring with identity. Let M be an R-module and T (M)* be the set of nonzero torsion elements. The set T(M)* makes up the vertices of the corresponding torsion graph, ΓR(M), with two distinct vertices x, y ∈ T(M)* forming an edge if ...
Rad P. Malakooti   +3 more
doaj   +1 more source

A note on semilocal rings

open access: yes, 1976
If (R, ml, . , m,,) is a semilocal ring whose ideal lattice is topologically complete, it is shown that: given any natural number n and any decreasing sequence of ideals of R, there exists a natural number s(n) such that aS(,,) S ( npai) + mnI where m ...
Johnny A. Johnson
semanticscholar   +1 more source

Construction of Barnette graphs whose large subgraphs are non-Hamiltonian

open access: yesActa Universitatis Sapientiae: Mathematica, 2019
Barnette’s conjecture states that every three connected cubic bipartite planar graph (CPB3C) is Hamiltonian. In this paper we show the existence of a family of CPB3C Hamiltonian graphs in which large and large subgraphs are non-Hamiltonian.
Pirzada S., Shah Mushtaq A.
doaj   +1 more source

Sums of Multivariate Polynomials in Finite Subgroups [PDF]

open access: yes, 2018
Let R be a commutative ring, f ∈ R[X1,⋯,Xk] a multivariate polynomial, and G a finite subgroup of the group of units of R satisfying a certain constraint, which always holds if R is a field.
Leonetti P, Marino A
core   +1 more source

Asymptotic regularity of powers of ideals of points in a weighted projective plane

open access: yes, 2009
In this paper we study the asymptotic behavior of the regularity of symbolic powers of ideals of points in a weighted projective plane. By a result of Cutkosky, Ein and Lazarsfeld, regularity of such powers behaves asymptotically like a linear function ...
Cutkosky, Steven Dale, Kurano, Kazuhiko
core   +1 more source

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