Topic #2 -------------- OP-SF NET --------------- December 29, 1994 ~~~~~~~~~ From: J. Boersma Subject: In Memoriam P.J. de Doelder In OP-SF Net 1.8, topic #7 it was already briefly mentioned that P.J. de Doelder died on October 16, 1994. J. Boersma sent us the following. In memoriam P.J. de Doelder Pieter J. de Doelder, retired from Eindhoven University of Technology, died on October 16, 1994 at the age of 75 years. From 1957 till 1982 de Doelder was a faculty member of the Department of Mathematics of EUT, where he was primarily involved in teaching. In addition, de Doelder was a prolific problem solver, particularly in the field of special functions. Till the end of his life he made numerous contributions to the Problem Sections of Nieuw Archief voor Wiskunde, SIAM Review, and of the OP-SF Newsletter.