Obituary for Tom Head.

Thomas J. Head, known by friends and collaborators as Tom, passed away on November 10, 2017, at the age of 83 (he was born in Tonkawa Oklahoma, on Jan. 6 1934). His undergraduate and graduate studies were in pure mathemat- ics, at University of Oklahoma and University of Kansas. He received a PhD in 1962, at the University of Kansas, and held professorships at Iowa State Uni- versity, University of Alaska, and Binghamton University. Tom was a professor at Binghamton University from 1988 until retirement { and remained professor emeritus of this university until his last days.