Showing posts from February, 2020

In Memoriam Paul Catlin

 From BICA (17) 1996: Paul Catlin, 1948—1995 On April 20, 1995, Paul Allen Catlin passed away in Detroit, Michigan, at the age of 46, and the community of graph theory lost one of its best friends. Paul Catlin was born on June 25, 1948 in Bridgeport, Connecticut. He received his BA at Carnegie—Mellon University in 1970, and then went to The Ohio State University, where he earned his MS in 1973 and PhD in 1976, studying under Prof. Neil Robertson. Ile accepted a as an Assistant Professor at Wayne State University upon graduation and remained there for the rest of his life. Paul was promoted to associate professor with tenure in 1981 and to full professor in 1990. He was a very effective advisor, with success that is shown in the list of his graduate students. These were I-long-Jian Lai (MS in 1985 and PhD in 1988), Zhi-Hong Chen (PhD in 1991), X. Y. su (PhD in 1994), Ciping Chen (nearing completion of his PhD), and M. Bayen (PhD dissertation in progress). In addition, he had as m

In Memoriam Raphael Robinson

 From BICA (16) 1996: Raphael M. Robinson John Brillhart In the fall of 1948, when I entered U.C. Berkeley as a freshman, the university was bursting with who were getting a free education under the G.I. bill. By great good luck in my second semester, I took a course in the theory of equations taught by Raphael. We used the newly published, outstanding book of Uspensky [8].   I was deeply interested in the course, for it contained such topics as complex numbers, solving cubic and quartic equations, Vieta's and Newton's formulas, symmetric polynomials, elimination theory with resultants and discriminants, and Sturm sequences. Raphael wrote out his lectures in advance in a clear, strong hand with a fountain pen and then copied the notes onto the board during the lecture. The notes were clear, direct, and complete and I began to get a glimpse of a new level of understanding mathematics. Raphael was a very sensible and deliberate man who required you to make sense, even if

1994 Kirkman medal awarded to Jonathan Jedwab

 From BICA (15) 1995: The 1995 Kirkman Medals of the ICA The 1995 Kirkman Medals of the ICA are awarded to members of the Institute who received their doctoral degrees in 1991, 1992, or 1993, and who have already produced a substantial amount of research work of exceptional quality. The Kirkman Medals were inaugurated in 1994, and the 1995 Kirkman Medals, the first to be granted, have been awarded to Jonathan Jedwab and Robert Craigen. We give summaries of the much more extensive citations and publication lists that were supplied by the nominators of these two outstanding young researchers. Jonathan Jedwab received his Master's degree from Cambridge University and completed a doctorate at Royal Holloway College of the University of London, under the direction of Fred Piper, in 1991. Despite being only a part-time doctoral student, he completed his thesis in a record years. Since that time, he has been employed at Hewlett-Packard Laboratories, where he is involved in seven pendi

51st SEICCGTC March 9-13, 2020