Professor Hassan Akbar-Zadeh (Born: March 23, 1928- Iran), a prominent Iranian mathematician has died (March 23, 2020) in Paris after years of research and study. (I'm not sure of the exact dates.)
He has worked with the French National Center for Scientific Research and the Collège de France for many years and was director of research at C.N.R.S., Paris, France.
His famous book is "Initiation to global Finslerian geometry". He was one of the top students of André Lichnérowicz.
I am googling days and surprisingly I couldn't find a single webpage or article about him. So I want to ask:
What do you know about Hassan Akbar-Zadeh's mathematical legacy, biography, etc?