Interface regularity for semilinear one-phase problems
Interface regularity for semilinear one-phase problems
复制标题
半线性单相问题的界面正则性
DOI:
10.1016/j.aim.2022.108380
复制
发表时间:
2021
影响因子:
1.7
通讯作者:
J. Serra
中科院分区:
文献类型:
--
作者:
A. Audrito;J. Serra
We study critical points of a one-parameter family of functionals arising in combustion models. The problems we consider converge, for infinitesimal values of the parameter, to Bernoulli's free boundary problem, also known as one-phase problem. We prove a C 1, α estimates for the “interfaces”(level sets separating the burnt and unburnt regions). As a byproduct, we obtain the one-dimensional symmetry of minimizers in the whole R N, for N≤ 4, answering positively a conjecture of Fernández-Real and Ros-Oton. Our results are to Bernoulli's free boundary problem what Savin's results for the Allen-Cahn equation are to minimal surfaces.