English

Improved moduli of continuity for degenerate phase transitions

Analysis of PDEs 2024-08-22 v1

Abstract

We substantially improve in two scenarios the current state-of-the-art modulus of continuity for weak solutions to the NN-dimensional, two-phase Stefan problem featuring a pp-degenerate diffusion: for p=N3p=N\geq 3, we sharpen it to ω(r)exp(clnr1N); \boldsymbol{\omega}(r) \approx \exp (-c| \ln r|^{\frac1N}); for p>max{2,N}p>\max\{2,N\}, we derive an unexpected H\"older modulus.

Keywords

Cite

@article{arxiv.2408.11555,
  title  = {Improved moduli of continuity for degenerate phase transitions},
  author = {Ugo Gianazza and Naian Liao and José Miguel Urbano},
  journal= {arXiv preprint arXiv:2408.11555},
  year   = {2024}
}