HEEriksen
I am quite certain that it was either Carl Neumann (1882-1925) or his
father, Franz Neumann (1798-1895), but I don`t remember which of these
two.
BTW: there is a nice webpage at the University of St. Andrews, Scotland
with biographies of many mathematicians:
http://www-groups.dcs.st-and.ac.uk/~history/index.html
(However, I just checked it for Franz and Carl Neumann, but there is
nothing specific there about the Neumann condition. Both seem equally
possible from their work areas (Heat conduction, electrodynamics etc.)
--
Ulrich Lange Dept. of Chemical Engineering
University of Alberta
la...@gpu.srv.ualberta.ca Edmonton, Alberta, T6G 2G6, Canada