Results 11 to 20 of about 15,892 (238)

Concentration of symmetric eigenfunctions [PDF]

open access: yesNonlinear Analysis: Theory, Methods & Applications, 2010
8 ...
Azagra, Daniel, Macia Lang, Fabricio
openaire   +6 more sources

Stochastic Duality and Eigenfunctions [PDF]

open access: yes, 2019
We start from the observation that, anytime two Markov generators share an eigenvalue, the function constructed from the product of the two eigenfunctions associated to this common eigenvalue is a duality function. We push further this observation and provide a full characterization of duality relations in terms of spectral decompositions of the ...
Redig F., Sau F.
core   +6 more sources

Estimates for Dirichlet Eigenfunctions [PDF]

open access: yesJournal of the London Mathematical Society, 1999
Estimates for the Dirichlet eigenfunctions near the boundary of an open, bounded set in euclidean space are obtained. It is assumed that the boundary satisfies a uniform capacitary density condition.
van den Berg, M, Bolthausen, E
openaire   +3 more sources

Eigenfunctions of the time-fractional telegraph equation of distributed order [PDF]

open access: yes, 2023
In this work, the eigenfunction problem for the time-fractional telegraph operator of distributed order in $\BR^n \times \BR^+$ is considered. By employing the technique of the Fourier, Laplace and Mellin transforms, an integral representation of the ...
Ferreira, M.   +2 more
core   +1 more source

Entropy of Eigenfunctions [PDF]

open access: yes, 2009
We study the high--energy limit for eigenfunctions of the laplacian, on a compact negatively curved manifold. We review the recent result of Anantharaman-Nonnenmacher giving a lower bound on the Kolmogorov-Sinai entropy of semiclassical measures, and improve this lower bound in the case of variable negative curvature.
Anantharaman, Nalini   +2 more
openaire   +3 more sources

The Regularized Trace Formula Of A Second Order Differentıal Equation Given With Anti-Perıodic Boundary Conditions

open access: yesCumhuriyet Science Journal, 2019
In this study, we examined the formula of the regularizedtrace of the self-adjoint operator which is formed bydifferentialexpression and anti-periodic boundary condition.
Seda Kızılbudak Çalışkan   +1 more
doaj   +1 more source

Analysis and methodology of determining the norm of eigenfunctions as a limit transition in the scalar product in the spectral Stourm-Louvile problem for a photonic one-dimensional crystal

open access: yesВісник Харківського національногоуніверситету імені В.Н. Каразіна. Серія: Радіофізика та електроніка, 2023
Relevance The last of the decades (approximately from the 90s of the 20th century) to rapid grow of photonics. That's why, firstly, relevance this work is related to relevance diffraction problems for the structures of optics ranges (photonic crystal ...
О.V. Kazanko, О.E. Penkina
doaj   +1 more source

Pointwise Bounds for Steklov Eigenfunctions [PDF]

open access: yes, 2018
Let (Ω,g) be a compact, real-analytic Riemannian manifold with real-analytic boundary ∂Ω. The harmonic extensions of the boundary Dirichlet-to-Neumann eigenfunctions are called Steklov eigenfunctions.
Jeffrey Galkowski   +3 more
core   +1 more source

Lie group valued Koopman eigenfunctions

open access: yes, 2023
Every continuous-time flow on a topological space has associated to it a Koopman operator, which operates by time-shifts on various spaces of functions, such as $C^r$, $L^2$, or functions of bounded variation.
Das, Suddhasattwa
core   +3 more sources

The nonlocal boundary value problem with perturbations of mixed boundary conditions for an elliptic equation with constant coefficients. I

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2019
In this article we investigate a problem with nonlocal boundary conditions which are multipoint perturbations of mixed boundary conditions in the unit square $G$ using the Fourier method. The properties of a generalized transformation operator $R: L_2(G)
Ya.O. Baranetskij   +3 more
doaj   +1 more source

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