Results 31 to 40 of about 3,534,316 (293)

Eigenvalue problems for the p-Laplacian with indefinite weights

open access: yesElectronic Journal of Differential Equations, 2001
We consider the eigenvalue problem $-Delta_p u=lambda V(x) |u|^{p-2} u, uin W_0^{1,p} (Omega)$ where $p>1$, $Delta_p$ is the p-Laplacian operator, $lambda >0$, $Omega$ is a bounded domain in $mathbb{R}^N$ and $V$ is a given function in $L^s (Omega)$ ($s$
Mabel Cuesta
doaj   +2 more sources

Nodal solutions of weighted indefinite problems [PDF]

open access: yesJournal of Evolution Equations, 2020
This paper analyzes the structure of the set of nodal solutions of a class of one-dimensional superlinear indefinite boundary values problems with an indefinite weight functions in front of the spectral parameter. Quite astonishingly, the associated high order eigenvalues might not be concave as it is the lowest one.
M. Fencl, J. López-Gómez
openaire   +5 more sources

EIGENVALUE HOMOGENISATION PROBLEM WITH INDEFINITE WEIGHTS [PDF]

open access: yesBulletin of the Australian Mathematical Society, 2015
In this work we study the homogenisation problem for nonlinear elliptic equations involving$p$-Laplacian-type operators with sign-changing weights. We study the asymptotic behaviour of variational eigenvalues which consist of a double sequence of eigenvalues.
Fernandez Bonder, Julian   +2 more
openaire   +4 more sources

Body donor programs in Australia and New Zealand: Current status and future opportunities. [PDF]

open access: yesAnat Sci Educ
Abstract Body donation is critical to anatomy study in Australia and New Zealand. Annually, more than 10,000 students, anatomists, researchers, and clinicians access tissue donated by local consented donors through university‐based body donation programs. However, little research has been published about their operations.
Jenkin RA, Keay KA.
europepmc   +2 more sources

Asymmetric elliptic problems with indefinite weights [PDF]

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 2002
We prove the existence of a first nontrivial eigenvalue for an asymmetric elliptic problem with weights involving the laplacian (cf. (1.2) below) or more generally the p -laplacian (cf. (1.3) below).
Gossez, Jean-Pierre   +3 more
openaire   +3 more sources

Periodic solutions of the Lp-Minkowski problem with indefinite weight

open access: yesMathematical Modelling and Control, 2022
We provide a new sufficient condition for the existence of a periodic solution of the singular differential equation $ u''+u = \frac{h(t)}{u^\rho}, $ which is associated with the planar $ L_p $-Minkowski problem.
Zhibo Cheng, Pedro J. Torres
doaj   +1 more source

Modified moments for indefinite weight functions [PDF]

open access: yesNumerische Mathematik, 1990
The problem of generating the recurrence coefficients of orthogonal polynomials from the moments or from modified moments of the weight function is well understood for positive weight distributions. Here we extend this theory and the basic algorithms to the case of an indefinite weight function.
Martin H. Gutknecht, Gene H. Golub
openaire   +3 more sources

High Multiplicity and Chaos for an Indefinite Problem Arising from Genetic Models

open access: yesAdvanced Nonlinear Studies, 2020
We deal with the periodic boundary value problem associated with the parameter-dependent second-order nonlinear differential ...
Boscaggin Alberto   +2 more
doaj   +1 more source

Positive solutions for a Minkowski-curvature equation with indefinite weight and super-exponential nonlinearity [PDF]

open access: yesCommunications in Contemporary Mathematics, 2020
We investigate the existence of positive solutions for a class of Minkowski-curvature equations with indefinite weight and nonlinear term having superlinear growth at zero and super-exponential growth at infinity. As an example, for the equation [Formula:
A. Boscaggin   +2 more
semanticscholar   +1 more source

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