Results 11 to 20 of about 128,731 (304)

A combinatorial commutativity property for rings [PDF]

open access: goldInternational Journal of Mathematics and Mathematical Sciences, 2002
We study commutativity in rings R with the property that for a fixed positive integer n, xS = Sx for all x ∈ R and all n‐subsets S of R.
Howard E. Bell, Abraham A. Klein
openalex   +6 more sources

On the commutative properties of boundary integral operators [PDF]

open access: bronzeProceedings of the American Mathematical Society, 1979
A discussion of the interior Dirichlet and Neumann problems of classical potential theory can be given in terms of the symmeterisers of certain related integral operators. Recent developments in the theory and application of integral equations of the first kind have made this approach towards the solution of boundary value problems a more attractive ...
G. F. Roach
  +6 more sources

On the Commutation Properties of Finite Convolution and Differential Operators I: Commutation. [PDF]

open access: yesResults in Mathematics, 2021
The commutation relation $KL = LK$ between finite convolution integral operator $K$ and differential operator $L$ has implications for spectral properties of $K$. We characterize all operators $K$ admitting this commutation relation. Our analysis places no symmetry constraints on the kernel of $K$ extending the well-known results of Morrison for real ...
Yury Grabovsky, Narek Hovsepyan
openaire   +5 more sources

Hypercyclicity Properties of Commutator Maps [PDF]

open access: yesIntegral Equations and Operator Theory, 2016
We investigate the hypercyclic properties of commutator maps acting on separable ideals of operators. As the main result we prove the commutator map induced by scalar multiples of the backward shift operator fails to be hypercyclic on the space of compact operators on $\ell^2$. We also establish some necessary conditions which identify large classes of
Clifford Gilmore   +2 more
openaire   +5 more sources

On idempotent stable range 1 matrices

open access: yesSpecial Matrices, 2022
We characterize the idempotent stable range 1, 2 × 2 matrices over commutative rings and in particular the integral matrices with this property. Several special cases and examples complete the subject.
Călugăreanu Grigore, Pop Horia F.
doaj   +1 more source

The universal property of commutative algebras' internal crossed modules

open access: yesJournal of New Results in Science, 2023
In this work, we identify subobjects and ideals in the category of internal crossed modules, which provide a deeper understanding of the structure of these objects.
Elis Soylu Yılmaz
doaj   +1 more source

Properties of the combinations of commutative idempotents [PDF]

open access: yesLinear Algebra and its Applications, 2012
AbstractThis paper deals with idempotent operators (i.e., P2=P) and n-potent operators (i.e., Pn=P). We characterize the invertibility, the group invertibility and idempotency of the linear combinations of idempotent operators (or n-potent operators) under certain commutativity property imposed on them.
Chunyuan Deng   +2 more
openaire   +1 more source

Computation of eccentric topological indices of zero-divisor graphs based on their edges

open access: yesAIMS Mathematics, 2022
The topological index of a graph gives its topological property that remains invariant up to graph automorphism. The topological indices which are based on the eccentricity of a chemical graph are molecular descriptors that remain constant in the whole ...
Ali N. A. Koam   +3 more
doaj   +1 more source

The Ideal Intersection Property for Groupoid Graded Rings [PDF]

open access: yes, 2010
We show that if a groupoid graded ring has a certain nonzero ideal property, then the commutant of the center of the principal component of the ring has the ideal intersection property, that is it intersects nontrivially every nonzero ideal of the ring ...
Caenepeel S.   +25 more
core   +1 more source

Leibniz seminorms in probability spaces [PDF]

open access: yes, 2014
In this paper we study the (strong) Leibniz property of centered moments of bounded random variables. We shall answer a question raised by M.
Besenyei, Adam, Leka, Zoltan
core   +2 more sources

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