Ivan Vidav

http://en.wikipedia.org/wiki/Ivan_Vidav

Ivan Vidav (born January 17, 1918) is a Slovenian mathematician. Ivan Vidav was born in Opčine near Trieste (Slovenian Trst), Italy. He is Josip Plemelj's student. Vidav got his Ph.D. under Plemelj's advisory in 1941 at the University of Ljubljana with a dissertation Kleinovi teoremi v teoriji linearnih diferencialnih enačb (Klein's theorems in the theory of linear differential equations). Vidav's main research interest are differential equations, functional analysis and algebra. He is a regular member of Slovenian Academy of Sciences and Arts. He was awarded the Prešeren Award. From 1988 he is an honourable member of the Society of Mathematicians, Physicists and Astronomers of Slovenia (DMFA).

-------------------------------
Ivan was the youngest of four sons of a small-time farmer, also called Ivan Vidav, and his wife Josipina Sosic. Josipina had first married Ivan's uncle before her marriage to Ivan. Ivan junior, the subject of this biography, also had a step-sister who was fourteen years his elder. http://www-history.mcs.st-andrews.ac.uk/Biographies/Vidav.html