On singularity structure of minimax solution to Dirichlet problem for eikonal type equation with discontinuous curvature of boundary of boundary set. (Russian. English summary) Zbl 1499.32049
Ufim. Mat. Zh. 13, No. 3, 129-154 (2021); translation in Ufa Math. J. 13, No. 3, 126-151 (2021).