Results 11 to 20 of about 20,411 (217)

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.
openaire   +5 more sources

Conical Nodes In Nonadiabatic Eigenfunctions [PDF]

open access: yes, 2019
Where the Born-Oppenheimer Approximation breaks down, systems can best be understood using exact nonadiabatic eigenfunctions. Exact nonadiabatic eigenstates are calculated and factored using Hunter’s exact factorization and it is found that when ...
Foster, Peter Wesley
core   +8 more sources

Localized eigenfunctions in Seba billiards [PDF]

open access: yes, 2010
We describe some new families of quasimodes for the Laplacian perturbed by the addition of a potential formally described by a Dirac delta function.
J. Marklof (7162220)   +2 more
core   +5 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

Lie group valued Koopman eigenfunctions [PDF]

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   +4 more sources

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

Carleson Measures and Logvinenko-Sereda sets on compact manifolds [PDF]

open access: yes, 2013
Given a compact Riemannian manifold $M$ of dimension $m \geq 2$, we study the space of functions of $L^2(M)$generated by eigenfunctions of eigenvalues less than $L \geq 1$ associated to the Laplace-Beltrami operator on $M$.
Bharti Pridhnani   +3 more
core   +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

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

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