Results 31 to 40 of about 488,781 (331)
We consider the combined effect of concave–convex nonlinearities on the number of solutions for an indefinite truncated Kirchhoff-type system involving the weight functions.
Qingjun Lou, Yupeng Qin
doaj +1 more source
Walk-through survey report, Molycorp's Mountain Pass Operation at Mountain Pass, California.
openalex +2 more sources
This paper is concerned with the existence and multiplicity of fast homoclinic solutions for a class of damped vibration problems with impulsive effects.
Qiongfen Zhang
doaj +1 more source
A variational analysis of Einstein-scalar field Lichnerowicz equations on compact Riemannian manifolds [PDF]
We establish new existence and non-existence results for positive solutions of the Einstein-scalar field Lichnerowicz equation on compact manifolds. This equation arises from the Hamiltonian constraint equation for the Einstein-scalar field system in ...
A. Ambrosetti +15 more
core +3 more sources
Standing wave solutions of a quasilinear degenerate Schrödinger equation with unbounded potential
We are concerned with the existence of entire distributional nontrivial solutions for a new class of nonlinear partial differential equations. The differential operator was introduced by A. Azzolini et al.
Nejmeddine Chorfi, Vicenţiu Rădulescu
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Bird Migration Through A Mountain Pass Studied With High Resolution Radar, Ceilometers, And Census [PDF]
Autumnal migration was studied with high-resolution radar, ceilometer, and daily census in the area of Franconia Notch, a major pass in the northern Appalachian Mountains.
Stokstad, P. +3 more
core +2 more sources
Image restoration via Picard's and Mountain-pass Theorems
In this work, we present existence results for some problems which arise in image processing namely image restoration. Our essential tools are Picard's fixed point theorem for a strict contraction and Mountain-pass Theorem for critical point.
Souad Ayadi , Ozgur Ege
doaj +1 more source
Max-Min characterization of the mountain pass energy level for a class of variational problems
We provide a max-min characterization of the mountain pass energy level for a family of variational problems. As a consequence we deduce the mountain pass structure of solutions to suitable PDEs, whose existence follows from classical minimization ...
Bellazzini, Jacopo, Visciglia, Nicola
core +1 more source
On a nonlinear eigenvalue problem in Sobolev spaces with variable exponent [PDF]
We consider a class of nonlinear Dirichlet problems involving the $p(x)$--Laplace operator. Our framework is based on the theory of Sobolev spaces with variable exponent and we establish the existence of a weak solution in such a space.
Dinu, Teodora Liliana
core +7 more sources
Abstract Early childhood has increasingly been acknowledged as a vital time for all children. Inclusive and quality education is part of the United Nations Sustainable Development Goals, with the further specification that all children have access to quality pre‐primary education.
Laura H. V. Wright +8 more
wiley +1 more source

