Results 151 to 160 of about 5,577,530 (204)

Eigenvalue estimates for Fourier concentration operators on two domains. [PDF]

open access: yesArch Ration Mech Anal
Marceca F, Romero JL, Speckbacher M.
europepmc   +1 more source

Fractional Sturm–Liouville problem

open access: yesComputers and Mathematics With Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Malgorzata Klimek, Om Prakash Agrawal
exaly   +3 more sources

Indefinite Sturm–Liouville problems

Proceedings of the Royal Society of Edinburgh: Section A Mathematics, 2003
We study the spectrum of regular and singular Sturm–Liouville problems with real-valued coefficients and a weight function that changes sign. The self-adjoint boundary conditions may be regular or singular, separated or coupled. Sufficient conditions are found for (i) the spectrum to be real and unbounded below as well as above and (ii) the essential ...
Kong, Q., Wu, H., Zettl, A., Möller, M.
openaire   +2 more sources

A hierarchy of Sturm–Liouville problems

Mathematical Methods in the Applied Sciences, 2003
AbstractSturm–Liouville equations will be considered where the boundary conditions depend rationally on the eigenvalue parameter. Such problems apply to a variety of engineering situations, for example to the stability of rotating axles. Classesof these problems will be isolated with a rather rich spectral structure, for example oscillation, comparison
openaire   +1 more source

The Sturm-Liouville Problem

1996
Let us consider the equation $$- \left( {p\left( x \right)y'\left( x \right)} \right)' + q\left( x \right)y\left( x \right) = \lambda p\left( x \right)y\left( x \right) $$ on the segment 0 ≤ x ≤ l, assuming that the real-valued functions p, p′,q, ρ are continuous on this segment and $$p\left( x \right) \geqslant p_0 > 0,p\left( x \right ...
Yuri Egorov, Vladimir Kondratiev
openaire   +1 more source

Sturm–Liouville problems with impulse effects

Applied Mathematics and Computation, 2007
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Sturm–Liouville Problem

2015
The chapter provides an existence principle for the Sturm–Liouville boundary value problem with p (\(p \in \mathbb {N}\)) state-dependent impulse conditions Open image in new window Provided a, \(b \in [0,\infty )\), \(c_j \in \mathbb {R}\), \(j = 1,2\), and the data functions f, \(J_i\), \(M_i\), \(i=1,\ldots ,p\), are bounded ...
Irena Rachůnková, Jan Tomeček
openaire   +1 more source

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