Robuta

https://arxiv.org/abs/1403.5015v1
Abstract page for arXiv paper 1403.5015v1: Optimal regularity of solutions to the obstacle problem for the fractional Laplacian with drift
obstacle problemoptimalregularitysolutions
https://www.kth.se/math/kalender/alessio-figalli-free-boundary-regularity-for-the-obstacle-problem-1.1202153?date=2022-11-02&orgdate=2022-03-07&length=1&orglength=300
alessio figalliobstacle problemfreeboundaryregularity