Results 1 to 10 of about 2,277,693 (344)

On regular operators on Banach Lattices

open access: yesActa et Commentationes: Ştiinţe Exacte şi ale Naturii, 2023
Let E and F be Banach lattices and X and Y be Banach spaces. A linear operator T:E->F is called regular if it is the difference of two positive operators. We show that F has a b-property if and only if Lr(E,F) has b-property.
Omer Gok
doaj   +1 more source

Nijenhuis geometry III: gl-regular Nijenhuis operators [PDF]

open access: yesRevista matemática iberoamericana, 2020
We study Nijenhuis operators, that is, (1,1)-tensors with vanishing Nijenhuis torsion under the additional assumption that they are gl-regular, i.e., every eigenvalue has geometric multiplicity one.
A. Bolsinov, A. Konyaev, V. Matveev
semanticscholar   +1 more source

Regular and completely regular differential operators [PDF]

open access: yesMathematical Notes, 2007
We define the concept of completely regular ordinary differential operators and give various criteria for operators to belong to this class. We give also criteria for Birkhof regularity of ordinary differential operators in terms of the growth of the Green function and basis property.
Shiryaev, E. A., Shkalikov, A. A.
openaire   +2 more sources

Some Results on Non-Archimedean Operators Theory [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2023
In this paper, we define the notions of semi-regular operator, analytical core, surjectivity modulus and the injectivity modulus of bounded linear operators on non-Archimedean Banach spaces over $\mathbb{K}.$ We give a necessary and sufficient condition ...
Jawad Ettayb
doaj   +1 more source

Transcendental operators acting on slice regular functions

open access: yesConcrete Operators, 2022
The aim of this paper is to carry out an analysis of five trascendental operators acting on the space of slice regular functions, namely *-exponential, *-sine and *-cosine and their hyperbolic analogues. The first three of them were introduced by Colombo,
de Fabritiis Chiara
doaj   +1 more source

Ideals of regular operators on 𝑙² [PDF]

open access: bronze, 1983
Wolfgang Arendt, A. R. Sourour
openalex   +2 more sources

Notion of Complex Spherical Dombi Fuzzy Graph and Its Application in Decision-Making Problems

open access: yesIEEE Access, 2023
The complex spherical fuzzy graph (CSFG), which extends the concept of a spherical fuzzy graph (SFG), proves to be a more effective means of depicting relationships among diverse objects when these relationships are subject to uncertainty.
Ehsan Mehboob Ahmed Butt   +4 more
doaj   +1 more source

On some generalized recent operators in topological Spaces

open access: yesTikrit Journal of Pure Science, 2022
In this paper we introduce a new classes of operators namely (regular generalized*, regular generalized**, generalized **regular) (briefly, rg*, rg **, g**r, respectively) in topological spaces and study some of their properties with some important ...
Siham I. Aziz, Nabila I. Aziz
doaj   +1 more source

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

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