Results 71 to 80 of about 514,334 (168)
On recovering non-local perturbation of non-self-adjoint Sturm – Liouville operator [PDF]
Recently, there appeared a significant interest in inverse spectral problems for non-local operators arising in numerous applications. In the present work, we consider the operator with frozen argument $ly = -y''(x) + p(x)y(x) + q(x)y(a)$, which ...
Kuznetsova, Maria A.
doaj +1 more source
Exact and Numerical Solution of the Fractional Sturm-Liouville Problem with Neumann Boundary Conditions. [PDF]
Klimek M, Ciesielski M, Blaszczyk T.
europepmc +1 more source
Inequalities among eigenvalues of Sturm–Liouville problems
There are well-known inequalities among the eigenvalues of Sturm–Liouville problems with periodic, semi-periodic, Dirichlet and Neumann boundary conditions.
Kong Q, Wu H, Zettl A, Eastham MSP
doaj
On the Riesz Basisness of Systems Composed of Root Functions of Periodic Boundary Value Problems
We consider the nonself-adjoint Sturm-Liouville operator with q∈L1[0,1] and either periodic or antiperiodic boundary conditions. We obtain necessary and sufficient conditions for systems of root functions of these operators to be a Riesz basis in L2[0,1]
Alp Arslan Kıraç
doaj +1 more source
Fragility of the Schrödinger Cat in thermal environments. [PDF]
Bera S, Yip KLS, John S.
europepmc +1 more source
We study a question on stability and instability of the basis property of a system of eigenfunctions of the Sturm - Liouville operator, with an integral perturbation of anti-periodic type on the boundary conditions.
Nurlan S. Imanbaev
doaj
The UV prolate spectrum matches the zeros of zeta. [PDF]
Connes A, Moscovici H.
europepmc +1 more source
SPECTRAL PROPERTIES OF SINGULAR DIFFERENTIAL STURM-LIOUVILLE OPERATOR
The aim is to study the spectral properties of the not-semi-limited singular Sturm - Liouville operator. The method of constructing asymptotic formulae for solutions of the corresponding differential equation has been proposed.
Valeev, Nurmukhamet Fuatovich
core
On the unboundedness below of the Sturm—Liouville operator
We show that if the leading coefficient p in a Sturm-Liouville expression is negative on a set E with positive Lebesgue measure, then the minimal operator (and hence any self-adjoint realization of the Sturm-Liouville expression) is not bounded below ...
Manfred Möller
core +1 more source
On Positive Definite Kernels of Integral Operators Corresponding to the Boundary Value Problems for Fractional Differential Equations. [PDF]
Aleroev M, Aleroev T.
europepmc +1 more source

