English

An interpolation approach to $L^{\infty}$ a priori estimates for elliptic problems with nonlinearity on the boundary

Analysis of PDEs 2024-05-13 v1

Abstract

We establish an explicit L(\Om)L^\infty(\Om) a priori estimate for weak solutions to subcritical elliptic problems with nonlinearity on the boundary, in terms of the powers of their H1(\Om)H^1(\Om) norms. To prove our result, we combine in a novel way Moser type estimates together with elliptic regularity and Gagliardo--Nirenberg interpolation inequality. We illustrate our result with an application to subcritical problems satisfying Ambrosetti-Rabinowitz condition.

Keywords

Cite

@article{arxiv.2405.06304,
  title  = {An interpolation approach to $L^{\infty}$ a priori estimates for elliptic problems with nonlinearity on the boundary},
  author = {Maya Chhetri and Nsoki Mavinga and Rosa Pardo},
  journal= {arXiv preprint arXiv:2405.06304},
  year   = {2024}
}