Results 71 to 80 of about 13,802 (163)

Phase transition in anisotropic holographic superfluids with arbitrary dynamical critical exponent z and hyperscaling violation factor $$\alpha $$ α

European Physical Journal C: Particles and Fields, 2017
Einstein-scalar-U(2) gauge field theory is considered in a spacetime characterized by $$\alpha $$ α and z, which are the hyperscaling violation factor and the dynamical critical exponent, respectively.
Miok Park, Jiwon Park, Jae-Hyuk Oh
doaj   +1 more source

Mixed boundary value problems involving Sturm–Liouville differential equations with possibly negative coefficients

Boundary Value Problems
This paper is devoted to the study of a mixed boundary value problem for a complete Sturm–Liouville equation, where the coefficients can also be negative. In particular, the existence of infinitely many distinct positive solutions to the given problem is
Gabriele Bonanno, Giuseppina D’Aguì, Valeria Morabito   +2 more
doaj   +1 more source

Computation of Eigenvalues and Eigenfunctions in the Solution of Eddy Current Problems. [PDF]

Sensors (Basel), 2023
Theodoulidis T, Skarlatos A, Tytko G.
europepmc   +1 more source

Floquet theory for left-definite Sturm–Liouville problems

Journal of Mathematical Analysis and Applications, 2005
Let \(1/p,q,w\in L_{\text{loc}}(J,\mathbb R)\), \(p,| w| >0\) a.e., where \(J=[a,\infty )\) or \(J=(-\infty ,\infty )\) and \(w\) changes sign. The operator \(T\) on \(H=L^2(J,| w| )\) is defined by \[ Tf=\frac1w[-(pf')'+qf], \] with the usual domain, where in the case \(J=[a,\infty )\) also a boundary condition \(A_1f(a)+A_2(pf')(a)=0\) is imposed. It
Marletta, M., Zettl, A.
openaire   +1 more source

Exact and Numerical Solution of the Fractional Sturm-Liouville Problem with Neumann Boundary Conditions. [PDF]

Entropy (Basel), 2022
Klimek M, Ciesielski M, Blaszczyk T.
europepmc   +1 more source

On sampling theory and basic Sturm–Liouville systems

Journal of Computational and Applied Mathematics, 2007
The authors consider the basic Sturm-Liouville problem involving the second order \(q\)-difference equation with \(q\)-Jackson difference operator. The main purpose of this paper is to derive some \(q\)-analogs of the results for the ``classical'' Sturm-Liouville problem, i.e., involving the differential equation.
Annaby, M. H., Bustoz, J., Ismail, M. E.H.   +2 more
openaire   +2 more sources

The UV prolate spectrum matches the zeros of zeta. [PDF]

Proc Natl Acad Sci U S A, 2022
Connes A, Moscovici H.
europepmc   +1 more source

On Positive Definite Kernels of Integral Operators Corresponding to the Boundary Value Problems for Fractional Differential Equations. [PDF]

Entropy (Basel), 2022
Aleroev M, Aleroev T.
europepmc   +1 more source

Sturm-Liouville Theory and Orthogonal Functions

, 2009
Chebyschev polynomials, inessential singularities, extra examples and references ...
Azad, H., Mustafa, M. T.
openaire   +2 more sources

Spectral and Oscillation Theory for an Unconventional Fractional Sturm–Liouville Problem

Fractal and Fractional
Here, we investigate the spectral and oscillation theory for a class of fractional differential equations subject to specific boundary conditions.
Mohammad Dehghan, Angelo B. Mingarelli
doaj   +1 more source