English

Nonlinear scalar field equation with competing nonlocal terms

Analysis of PDEs 2021-08-11 v2

Abstract

We find radial and nonradial solutions to the following nonlocal problem Δu+ωu=(IαF(u))f(u)(IβG(u))g(u) in RN-\Delta u +\omega u= \big(I_\alpha\ast F(u)\big)f(u)-\big(I_\beta\ast G(u)\big)g(u) \text{ in } \mathbb{R}^N under general assumptions, in the spirit of Berestycki and Lions, imposed on ff and gg, where N3N\geq 3, 0βα<N0\leq \beta \leq \alpha<N, ω0\omega\geq 0, f,g:RRf,g:\mathbb{R}\to \mathbb{R} are continuous functions with corresponding primitives F,GF,G, and Iα,IβI_\alpha,I_\beta are the Riesz potentials. If β>0\beta>0, then we deal with two competing nonlocal terms modelling attractive and repulsive interaction potentials.

Keywords

Cite

@article{arxiv.2010.13184,
  title  = {Nonlinear scalar field equation with competing nonlocal terms},
  author = {Pietro d'Avenia and Jarosław Mederski and Alessio Pomponio},
  journal= {arXiv preprint arXiv:2010.13184},
  year   = {2021}
}

Comments

18 pages, to appear in Nonlinearity

R2 v1 2026-06-23T19:38:05.490Z