Results 131 to 140 of about 2,211 (224)
, 2020 © 2018, Pleiades Publishing, Ltd. We propose a new convenient for mathematical investigation formulation of the lasing eigenvalue problem as a spectral problem for an operator-valued function, which involves boundary integral operators.
Spiridonov A., Karchevskii E., Nosich A.
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Cyclic behaviour of Volterra composition operators
, 2011 We determine the cyclic behaviour of Volterra composition operators, which are defined as $(V_\phif)(x) =\int_0^{\phi(x)}f(t) dt$, $f ? L^p[0, 1]$, 1\leq p <\infty$,where $?$ is a measurable self-map of [0, 1].
Stanislav Shkarin +5 more
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Evaluation of integrals for the emptiness formation probability in the square-ice model
Nuclear Physics BWe study the emptiness formation probability (EFP) in the six-vertex model with domain wall boundary conditions. We present a conjecture according to which at the ice point, i.e., when all the Boltzmann weights are equal, the known multiple integral ...
F. Colomo, A.G. Pronko
doaj +1 more source
Closed Fredholm and semi-Fredholm operators, essential spectra and perturbations
, 1975 In these notes we provide rather extensive characterizations of closed densely defined Fredholm and semi-Fredholm operators on a Banach space, and their perturbation classes.
Williams, Vernon
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The image of a closed convex set under a Fredholm operator
, 2014 International audienceThe purpose of this article is two-fold. In the first place, we prove that a set is the image of a non empty closed convex subset of a real Banach space under an onto Fredholm operator of positive index if and only if it can be ...
Ernst, Emil
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Haar wavelets method for solving class of coupled systems of linear fractional Fredholm integro-differential equations. [PDF]
Heliyon, 2023 Darweesh A, Al-Khaled K, Al-Yaqeen OA.
europepmc +1 more source
The Existence of Periodic Solutions for Second-Order Delay Differential Systems. [PDF]
J Dyn Differ Equ, 2022 Liu C, Wang Q.
europepmc +1 more source
On the space of Fredholm operators
, 2000 We describe two topologies on the space of unbounded Fredholm operators and we explain their K-theoretic relevance. In the process we also prove a very general result concerning the continuity of families of first order, elliptic boundary value problems.
openaire +2 more sources
Characterization of the spectra of rotating truncated gas planets and inertia-gravity modes. [PDF]
Z Angew Math Physde Hoop MV, Holman S.
europepmc +1 more source
A symbolic dataset for large language models to solve second kind Fredholm integral equations. [PDF]
Sci DataDana Mazraeh H +3 more
europepmc +1 more source