Born: December 26, 1924, Budapest, Hungary.

Died: January 1, 2020, Ontario, Canada.

Higher Education: PhD in Mathematical Analysis at University of Budapest (Budapest, Hungary).

Main Publications: 

• Aczél, J.; Gołąb, S. (1960), Funktionalgleichungen der Theorie der geometrischen Objekte, Polska Akademia Nauk. Monografie Matematyczne, Tom 39, Państwowe Wydawnictwo Naukowe, Warsaw
• Aczél, J. (1966), Lectures on functional equations and their applications, Mathematics in Science and Engineering, 19, New York: Academic Press. Previously published in German as Vorlesungen über Funktionalgleichungen und ihre Anwendungen (Birkhäuser, 1961)
• Aczél, J.; Daróczy, Z. (1975), On measures of information and their characterizations, Mathematics in Science and Engineering, 115, New York: Academic Press [Harcourt Brace Jovanovich Publishers]
• Aczél, J. (1987), A short course on functional equations, Theory and Decision Library. Series B: Mathematical and Statistical Methods, Dordrecht: D. Reidel Publishing Co.
• Aczél, J.; Dhombres, J. (1989), Functional equations in several variables, Encyclopedia of Mathematics and its Applications, 31, Cambridge: Cambridge University Press.