Wojciech Górny is currently Associate Professor at the University of Warsaw and works primarily in calculus of variations, functional analysis, and PDEs. He previously co-authored the book 'Functions of Least Gradient' (2024) with Jose M. Mazón. José M. Mazón is Professor Emeritus in the Department of Mathematical Analysis at the University of Valencia. His research centres around Nonlinear Partial Differential Equations. He has authored approximately 130 papers and five books, one of which was awarded the Ferran Sunyer i Balaguer Prize in 2003.