Results 1 to 10 of about 269 (104)

On linear sections of orthogonally additive operators

open access: yesМатематичні Студії, 2022
Our first result asserts that, for linear regular operators acting from a Riesz space with the principal projection property to a Banach lattice with an order continuous norm, the $C$-compactness is equivalent to the $AM$-compactness. Next we prove that,
A. Gumenchuk, I. Krasikova, M. Popov
doaj   +5 more sources

Lateral continuity and orthogonally additive operators

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2015
We generalize the notion of a laterally convergent net from increasing nets to general ones and study the corresponding lateral continuity of maps. The main result asserts that, the lateral continuity of an orthogonally additive operator is equivalent to
A.I. Gumenchuk
doaj   +4 more sources

On the Sum of Narrow Orthogonally Additive Operators

open access: yesRussian Mathematics, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
exaly   +3 more sources

$$\varvec{\varepsilon }$$-Shading Operator on Riesz Spaces and Order Continuity of Orthogonally Additive Operators

open access: yesResults in Mathematics, 2022
AbstractGiven a Riesz space E and $$0 < e \in E$$ 0 < e ∈ E , we introduce and study an order continuous orthogonally additive operator which is an $$\varepsilon $$ ε
Mikhail Popov, Volodymyr Mykhaylyuk
exaly   +2 more sources

On Compact Orthogonally Additive Operators [PDF]

open access: yesLobachevskii Journal of Mathematics, 2021
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Basaeva, Elena   +2 more
  +14 more sources

Disjointness-preserving orthogonally additive operators in vector lattices

open access: yesBanach Journal of Mathematical Analysis, 2018
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marat Pliev, Nariman Abasov
exaly   +5 more sources

On orthogonally additive band operators and orthogonally additive disjointness preserving operators

open access: yesTurkish Journal of Mathematics, 2023
Let $M$ and $N$ be Archimedean vector lattices. We introduce orthogonally additive band operators and orthogonally additive inverse band operators from $M$ to $N$ and examine their properties. We investigate the relationship between orthogonally additive band operators and orthogonally additive disjointness preserving operators and show that under some
TURAN, BAHRİ, Tulu, Demet
openaire   +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

Projection lateral bands and lateral retracts

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2020
A projection lateral band $G$ in a Riesz space $E$ is defined to be a lateral band which is the image of an orthogonally additive projection $Q: E \to E$ possessing the property that $Q(x)$ is a fragment of $x$ for all $x \in E$, called a lateral ...
A. Kamińska, I. Krasikova, M. Popov
doaj   +1 more source

Narrow orthogonally additive operators [PDF]

open access: yesPositivity, 2013
We extend the notion of narrow operators to nonlinear maps on vector lattices. The main objects are orthogonally additive operators and, in particular, abstract Uryson operators. Most of the results extend known theorems obtained by O. Maslyuchenko, V. Mykhaylyuk and the second named author published in Positivity 13 (2009), pp.
Pliev, Marat, Popov, Mikhail
openaire   +3 more sources

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