Results 1 to 10 of about 25,809 (166)

On Hill's equation with a discontinuous coefficient [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2003
We research the asymptotic formula for the lengths of the instability intervals of the Hill's equation with coefficients q(x) and r(x), where q(x) is piecewise continuous and r(x) has a piecewise continuous second derivative in open intervals (0,b) and ...
Ilkay Yaslan Karaca
doaj   +3 more sources

Analytic vs. numerical solutions to a Sturm-Liouville transmission eigenproblem

open access: yesJournal of Numerical Analysis and Approximation Theory, 2019
An elliptic one-dimensional second order boundary value problem involving discontinuous coefficients, with or without transmission conditions, is considered.
Calin-Ioan Gheorghiu, Bertin Zinsou
doaj   +7 more sources

Efficacy of applying discontinuous boundary condition on the heat transfer and entropy generation through a slip microchannel equipped with nanofluid

open access: yesEngineering Applications of Computational Fluid Mechanics, 2022
In this study, the laminar nanofluid flow in the microchannel with a discontinuous-boundary condition was investigated. Considering the slip condition, heat transfer and entropy generation were studied.
Suhong Liu   +8 more
doaj   +1 more source

The Gini coefficient and discontinuity

open access: yesCogent Economics & Finance, 2022
This article reveals a discontinuity in the mapping from a Lorenz curve to the associated cumulative distribution function. The problem is of a mathematical nature—based on an analysis of the transformation between the distribution function of a bound random variable and its Lorenz curve.
openaire   +3 more sources

An Approximation Scheme for an Eikonal Equation with Discontinuous Coefficient [PDF]

open access: yesSIAM Journal on Numerical Analysis, 2014
We consider the stationary Hamilton-Jacobi equation where the dynamics can vanish at some points, the cost function is strictly positive and is allowed to be discontinuous. More precisely, we consider special class of discontinuities for which the notion of viscosity solution is well-suited.
Adriano Festa, Maurizio Falcone
openaire   +6 more sources

Conservation Laws with Discontinuous Coefficients

open access: yesJournal of Mathematical Analysis and Applications, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Bernard, S.   +3 more
openaire   +2 more sources

The Uniqueness of the Solution of the Schrödinger Equation with Discontinuous Coefficients [PDF]

open access: yesReviews in Mathematical Physics, 1998
29 (twenty-nine) pages; no figures; to appear in Reviews of Mathematical ...
Jäger, Willi, Saitō, Yoshimi
openaire   +3 more sources

A relaxation scheme for conservation laws with a discontinuous coefficient [PDF]

open access: yesMathematics of Computation, 2003
The authors study a relaxation scheme for conservation laws with discontinuous flux function \(f(k(x),u)\), where \(k(x)\) is a discontinuous coefficient. If \(k \in \text{BV}\) they are able to show that the approximate solutions of the relaxation scheme converge to a weak solution. The Murat-Tartar compensated compactness approach is used in order to
Kenneth H. Karlsen   +2 more
openaire   +1 more source

On Discontinuous Galerkin Methods for Elliptic Problems with Discontinuous Coefficients [PDF]

open access: yesComputational Methods in Applied Mathematics, 2003
AbstractDiscontinuous Galerkin methods for elliptic problems with discontinuous coefficients are discussed. First the error bound of the methods is analyzed. Then a multilevel additive Schwarz preconditioner for one of the discrete problems is designed and analyzed.
openaire   +2 more sources

Conservation Laws with Time Dependent Discontinuous Coefficients [PDF]

open access: yesSIAM Journal on Mathematical Analysis, 2005
The authors consider scalar conservation laws where the flux function depends discontinuously on both the spatial and temporal locations. The existence and well-posedness of an entropy solution to the Cauchy problem are proved. The existence is established by showing that a sequence of front tracking approximations is compact in \(L^1\), and that the ...
COCLITE, Giuseppe Maria, RISEBRO N. H.
openaire   +1 more source

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