Results 11 to 20 of about 87,459 (144)

The concentration-compactness principle in the calculus of variations. The locally compact case, part 1 [PDF]

open access: yesAnnales de l'Institut Henri Poincaré C, Analyse non linéaire, 1984
We present here a new method for solving minimization problems in unbounded domains. We first derive a general principle showing the equivalence between the compactness of all minimizing sequences and some strict sub-additivity conditions. The proof is based upon a compactness lemma obtained with the help of the notion of concentration function of a ...
P. Lions
semanticscholar   +5 more sources

Concentration-compactness principle for Trudinger–Moser inequalities on Heisenberg groups and existence of ground state solutions [PDF]

open access: yesCalculus of Variations and Partial Differential Equations, 2017
Let $$\mathbb {H}^{n}=\mathbb {C}^{n}\times \mathbb {R}$$Hn=Cn×R be the n-dimensional Heisenberg group, $$Q=2n+2$$Q=2n+2 be the homogeneous dimension of $$\mathbb {H}^{n}$$Hn. We extend the well-known concentration-compactness principle on finite domains
Jungang Li, G. Lu, Maochun Zhu
semanticscholar   +4 more sources

The concentration-compactness principle in the Calculus of Variations

open access: yesRevista Matemática Iberoamericana, 1985
After the study made in the locally compact case for variational problems with some translation invariance, we investigate here the variational problems (with constraints) for example in RN where the invariance of RN by the group of dilatations creates ...
P. Lions
semanticscholar   +5 more sources

The concentration-compactness principles for $W^{s,p(\cdot,\cdot)}(\mathbb{R}^N)$ and application

open access: green, 2019
We obtain a critical imbedding and then, concentration-compactness principles for fractional Sobolev spaces with variable exponents. As an application of these results, we obtain the existence of many solutions for a class of critical nonlocal problems with variable exponents, which is even new for constant exponent case.
Ky Ho, Yun-Ho Kim
openalex   +4 more sources

On the concentration-compactness principle for anisotropic variable exponent Sobolev spaces and its applications

open access: yesFractional Calculus and Applied Analysis
We obtain critical embeddings and the concentration-compactness principle for the anisotropic variable exponent Sobolev spaces. As an application of these results,we confirm the existence of and find infinitely many nontrivial solutions for a class of ...
Nabil Chems Eddine   +2 more
semanticscholar   +5 more sources

Multiplicity results for generalized quasilinear critical Schrödinger equations in $${\mathbb {R}}^N$$ [PDF]

open access: yesNonlinear Differential Equations and Applications NoDEA, 2023
Multiplicity results are proved for solutions both with positive and negative energy, as well as nonexistence results, of a generalized quasilinear Schrödinger potential free equation in the entire $${\mathbb {R}}^N$$ R N involving a ...
Laura Baldelli, Roberta Filippucci
semanticscholar   +1 more source

Critical Kirchhoff equations involving the -sub-Laplacians operators on the Heisenberg group

open access: yesBulletin of Mathematical Sciences, 2023
In this paper, we deal with a class of Kirchhoff-type critical elliptic equations involving the [Formula: see text]-sub-Laplacians operators on the Heisenberg group of the form M(∥DHu∥pp + ∥u∥ p,Vp)[−Δ H,pu + V (ξ)|u|p−2u] = λf(ξ,u) + |u|p∗−2u,ξ ∈ ℍn,u ...
Xueqi Sun   +3 more
doaj   +1 more source

Existence and multiplicity of solutions for critical Choquard-Kirchhoff type equations with variable growth

open access: yesAIMS Mathematics, 2023
We prove the existence and multiplicity of solutions for a class of Choquard-Kirchhoff type equations with variable exponents and critical reaction.
Lulu Tao, Rui He, Sihua Liang, Rui Niu
doaj   +1 more source

A Remark on the Concentration Compactness Principle in Critical Dimension [PDF]

open access: yesCommunications on Pure and Applied Mathematics, 2021
AbstractWe prove some refinements of the concentration compactness principle for Sobolev space W1, n on a smooth compact Riemannian manifold of dimension n. As an application, we extend Aubin's theorem for functions on with zero first‐order moments of the area element to the higher‐order moments case.
openaire   +3 more sources

Novel technologies combined with osmotic dehydration for application in the conservation of fruits: an overview

open access: yesCiência Rural, 2022
: Osmotic dehydration (OD) is a technique used for the partial removal of water from foodstuff, including fruit and vegetables, with the aim of producing a desiccated product. The process involves placing the material in a hypertonic solution for several
Barbara de Sousa Pinto   +3 more
doaj   +1 more source

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