The aim of our book is the investigation of the behavior of strong and weak solutions to the regular oblique derivative problems for second order elliptic equations, linear and quasi-linear, in the neighborhood of the boundary singularities. The main goal is to establish the precise exponent of the solution decrease rate and under the best possible conditions. The question on the behavior of solutions of elliptic boundary value problems near boundary singularities is of great importance for its many applications, e.g., in hydrodynamics, aerodynamics, fracture mechanics, in the geodesy etc. Only few works are devoted to the regular oblique derivative problems for second order elliptic equations in non-smooth domains. All results are given with complete proofs. The monograph will be of interest to graduate students and specialists in elliptic boundary value problems and their applications.
"The book under review presents a comprehensive and meticulously structured exploration of strong and weak solutions concerning regular oblique derivative problems for second-order elliptic equations. Its systematic approach and detailed examination of boundary singularities make it a valuable resource for researchers and practitioners in various fields ... . Its comprehensive treatment, structured approach, and detailed analysis make it an indispensable resource for postgraduates and young researchers seeking to deepen their understanding of elliptic equations within conical domains." (Giuseppe Di Fazio, zbMATH 1532.35001, 2024)