Subharmonic bouncing solutions for a class of sublinear impact oscillators with indefinite weight
Communications on Pure and Applied Analysis, 2023 Zhiguo Wang, Qihuai Liu, Chao Wang
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Nodal solutions of weighted indefinite problems [PDF]
Journal 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
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EIGENVALUE HOMOGENISATION PROBLEM WITH INDEFINITE WEIGHTS [PDF]
Bulletin 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
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Asymmetric elliptic problems with indefinite weights [PDF]
Annales 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
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Periodic solutions of the Lp-Minkowski problem with indefinite weight
Mathematical 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
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Modified moments for indefinite weight functions [PDF]
Numerische 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
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High Multiplicity and Chaos for an Indefinite Problem Arising from Genetic Models
Advanced Nonlinear Studies, 2020 We deal with the periodic boundary value problem associated with the parameter-dependent second-order nonlinear differential ...
Boscaggin Alberto +2 more
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Pairs of positive radial solutions for a Minkowski-curvature Neumann problem with indefinite weight [PDF]
Nonlinear Analysis, 2020 Alberto Boscaggin, Guglielmo Feltrin
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Positive solutions for a Minkowski-curvature equation with indefinite weight and super-exponential nonlinearity [PDF]
Communications 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
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Spectral properties of singular Sturm-Liouville operators with indefinite weight sgn x [PDF]
, 2007 We consider a singular Sturm-Liouville expression with the indefinite weight sgn x. To this expression there is naturally a self-adjoint operator in some Krein space associated.
Karabash, I., Trunk, C.
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