Results 21 to 30 of about 281,793 (289)

Novel Development to the Theory of Dombi Exponential Aggregation Operators in Neutrosophic Cubic Hesitant Fuzzy Sets: Applications to Solid Waste Disposal Site Selection

open access: yesComplexity, 2022
The neutrosophic cubic hesitant fuzzy set can efficiently handle the complex information in a decision-making problem because it combines the advantages of the neutrosophic cubic set and the hesitant fuzzy set.
Ateeq Ur Rehman   +5 more
doaj   +1 more source

Strongly mixing convolution operators on Fr\'echet spaces of holomorphic functions [PDF]

open access: yes, 2014
A theorem of Godefroy and Shapiro states that non-trivial convolution operators on the space of entire functions on $\mathbb{C}^n$ are hypercyclic. Moreover, it was shown by Bonilla and Grosse-Erdmann that they have frequently hypercyclic functions of ...
Muro, Santiago   +2 more
core   +2 more sources

Exponentially sparse representations of Fourier integral operators

open access: yes, 2015
We investigate the sparsity of the Gabor-matrix representation of Fourier integral operators with a phase having quadratic growth. It is known that such an infinite matrix is sparse and well organized, being in fact concentrated along the graph of the ...
Cordero, Elena   +2 more
core   +1 more source

Some remarks on degenerate hypoelliptic Ornstein-Uhlenbeck operators [PDF]

open access: yes, 2014
37 pages, 3 figuresInternational audienceWe study degenerate hypoelliptic Ornstein-Uhlenbeck operators in $L^2$ spaces with respect to invariant measures.
Ottobre, M.   +2 more
core   +5 more sources

On commuting operator exponentials [PDF]

open access: yesProceedings of the American Mathematical Society, 2003
Let A A , B
openaire   +1 more source

A note on the Schrodinger operator with exponential potential

open access: yesProceedings of the Institute of Mathematics and Mechanics, National Academy of Sciences of Azerbaijan, 2021
Summary: The Schrödinger operator \(L=-\frac{d^2}{dx^2}+e^{2x}\) on the positive half-line with the Dirichlet boundary condition at zero is studied. A description of the domain of definition of the operator \(L\) is given. Using the connection between the modified Bessel equation and the Schrödinger equation, the distribution of the zeros of the ...
Khanmamedov, Agil Kh., Mamedova, Afag F.
openaire   +1 more source

Approximation results for a general class of Kantorovich type operators [PDF]

open access: yes, 2014
We introduce and study a family of integral operators in the Kantorovich sense for functions acting on locally compact topological groups. We obtain convergence results for the above operators with respect to the pointwise and uniform convergence and in ...
Vinti, Gianluca, Zampogni, Luca
core   +1 more source

Resonant tunneling in a system with correlated pure point spectrum

open access: yes, 2018
We consider resonant tunneling between disorder localized states in a potential energy displaying perfect correlations over large distances. The phenomenon described here may be of relevance to models exhibiting many-body localization.
Mavi, Rajinder, Schenker, Jeffrey
core   +1 more source

On uniform exponential splitting for noninvertible evolution operators in Banach Spaces

open access: yesAnnals of the West University of Timisoara: Mathematics and Computer Science, 2015
The paper considers the general concept of uniform exponential splitting as a generalization of uniform exponential dichotomy property for evolution operators in Banach spaces.
Mihiţ Claudia Luminiţa   +2 more
doaj   +1 more source

Semiclassical approach to form factors in the sinh-Gordon model

open access: yesJournal of High Energy Physics, 2023
Form factors in the sinh-Gordon model are studied semiclassically for small values of the parameter b ~ ħ 1/2 in the background of a radial classical solution, which describes a heavy exponential operator placed at the origin.
Michael Lashkevich   +2 more
doaj   +1 more source

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