Results 41 to 50 of about 106,796 (274)

Solutions of stationary Kirchhoff equations involving nonlocal operators with critical nonlinearity in RN

open access: yesNonlinear Analysis, 2017
In this paper, we consider the existence and multiplicity of solutions for fractional Schrödinger equations with critical nonlinearity in RN. We use the fractional version of Lions' second concentration-compactness principle and concentration-compactness
Ziwei Piao, Chenxing Zhou, Sihua Liang
doaj   +1 more source

Existence and Symmetry of Solutions for a Class of Fractional Schrödinger–Poisson Systems

open access: yesMathematics, 2021
In this paper, we investigate a class of Schrödinger–Poisson systems with critical growth. By the principle of concentration compactness and variational methods, we prove that the system has radially symmetric solutions, which improve the related results
Yongzhen Yun, Tianqing An, Guoju Ye
doaj   +1 more source

Solitary waves in nonlocal NLS with dispersion averaged saturated nonlinearities [PDF]

open access: yes, 2017
A nonlinear Schr\"odinger equation (NLS) with dispersion averaged nonlinearity of saturated type is considered. Such a nonlocal NLS is of integro-differential type and it arises naturally in modeling fiber-optics communication systems with periodically ...
Hundertmark, Dirk   +3 more
core   +3 more sources

Nodal solutions for the Choquard equation [PDF]

open access: yes, 2016
We consider the general Choquard equations $$ -\Delta u + u = (I_\alpha \ast |u|^p) |u|^{p - 2} u $$ where $I_\alpha$ is a Riesz potential. We construct minimal action odd solutions for $p \in (\frac{N + \alpha}{N}, \frac{N + \alpha}{N - 2})$ and ...
Ghimenti, Marco, Van Schaftingen, Jean
core   +2 more sources

Concentration analysis and cocompactness [PDF]

open access: yes, 2013
Loss of compactness that occurs in may significant PDE settings can be expressed in a well-structured form of profile decomposition for sequences. Profile decompositions are formulated in relation to a triplet $(X,Y,D)$, where $X$ and $Y$ are Banach ...
C Clark   +39 more
core   +1 more source

Existence of Solutions for p-Kirchhoff Problem of Brézis-Nirenberg Type with Singular Terms

open access: yesJournal of Function Spaces, 2022
In this paper, we prove the existence of positive solution for a p-Kirchhoff problem of Brézis-Nirenberg type with singular terms, nonlocal term, and the Caffarelli-Kohn-Nirenberg exponent by using variational methods, concentration compactness, and ...
Atika Matallah   +2 more
doaj   +1 more source

Existence of solutions for critical systems with variable exponents

open access: yesMathematical Modelling and Analysis, 2018
In this work, we deal with elliptic systems under critical growth conditions on the nonlinearities. Using a variant of concentration-compactness principle, we prove an existence result.
Hadjira Lalilia, Saadia Tas, Ali Djellit
doaj   +1 more source

Spectral optimization problems for potentials and measures [PDF]

open access: yes, 2013
In the present paper we consider spectral optimization problems involving the Schr\"odinger operator $-\Delta +\mu$ on $\R^d$, the prototype being the minimization of the $k$ the eigenvalue $\lambda_k(\mu)$.
Bucur, Dorin   +2 more
core   +4 more sources

Concentration compactness principles for the systems of critical elliptic equations [PDF]

open access: yesDifferential Equations & Applications, 2012
In this paper, some important variants of the concentration compactness principle are established. By the variants, some kinds of the elliptic systems can be investigated and the existence of nontrivial solutions to the systems can be verified by the variational methods.
openaire   +2 more sources

Ground States for a Stationary Mean-Field Model for a Nucleon [PDF]

open access: yes, 2012
In this paper we consider a variational problem related to a model for a nucleon interacting with the $\omega$ and $\sigma$ mesons in the atomic nucleus. The model is relativistic, and we study it in a nuclear physics nonrelativistic limit, which is of a
Esteban, Maria J., Nodari, Simona Rota
core   +5 more sources

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