Results 21 to 30 of about 1,511,949 (300)

Order Projection in OAr(E,F)

open access: yesСовременная математика: Фундаментальные направления, 2022
We investigate order projections onto different bands in the space of all regular orthogonally additive operators. In particular, we obtain formulas for calculation of the order projections onto the band generated by a directed set of positive ...
N. A. Dzhusoeva   +2 more
doaj   +1 more source

On the Quotients of Regular Operators

open access: yesUniversal Journal of Mathematics and Applications, 2019
We give some results about quotients of regular operators on Banach lattices by the linear span of the positive M-weakly and positive L-weakly compact operators.
Erdal Bayram   +1 more
doaj   +1 more source

Regular Operator Equations: Conditions for Regularity [PDF]

open access: yesProceedings of the American Mathematical Society, 1982
Regular operator equations are causal equations admitting unique solutions and have the property that all of their limiting equations along solutions admit unique solutions. Sufficient conditions which guarantee that an operator equation
openaire   +2 more sources

Power-regular Bishop operators and spectral decompositions

open access: yes, 2021
It is proved that a wide class of Bishop-type operators $T_{\phi,\tau}$ are power-regular operators in $L^p(\Omega, \mu)$, $1 \leq p < \infty$, computing the exact value of the local spectral radius at any function $u \in L^p(\Omega, \mu)$.
Gallardo Gutiérrez, Eva Antonia   +1 more
core   +1 more source

About Riesz theory of compact operators

open access: yesBibechana, 2012
In this paper, it is shown that every compact operators are bounded and continuous. The bounded and continuous properties of an operator is sufficient for a Riesz operator.
Nagendra Pd Sah
doaj   +3 more sources

Regular Expressions with Lookahead [PDF]

open access: yesJournal of Universal Computer Science, 2021
This paper investigates regular expressions which in addition to the standard operators of union, concatenation, and Kleene star, have lookaheads. We show how to translate regular expressions with lookaheads (REwLA) to equivalent Boolean automata having ...
Martin Berglund   +2 more
doaj   +3 more sources

Orthogonally Biadditive Operators

open access: yesJournal of Function Spaces, 2021
In this article, we introduce and study a new class of operators defined on a Cartesian product of ideal spaces of measurable functions. We use the general approach of the theory of vector lattices.
Nonna Dzhusoeva   +2 more
doaj   +1 more source

Interpolated scales of approximation spaces for regular elliptic operators on compact manifolds

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2014
We define the interpolated scales of approximation spaces, generated by regular elliptic operators on compact manifolds. The appropriate Bernstein-Jackson inequalities and application to spectral approximations of regular elliptic operators are ...
M.I. Dmytryshyn
doaj   +1 more source

A note on the relationship between three classes of operators on Riesz spaces

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2019
Following several papers in the prior literature, we study the relationship between order bounded operators, topologically bounded operators and topologically continuous operators.
Hong Liang
doaj   +1 more source

Orthogonal projection regularization operators [PDF]

open access: yesNumerical Algorithms, 2007
The authors propose Tikhonov regularization operators of the form \(L = I - W W^T\), with \(W^T W = I\) and easy to be computed. They successfully apply these constructions to iterative and singular value decomposition-based methods. Numerical examples are presented for first kind integral equations and image restoration problems.
MORIGI, SERENA   +2 more
openaire   +2 more sources

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