Moshe Roitman was born in 1944 in Constanța, Romania, and immigrated to Israel in 1961.  He studied at the Hebrew University in Jerusalem, graduating in 1968 with a B.Sc. in mathematics and physics, then completing an M.Sc. thesis under S. A. Amitsur in1969, and a Ph.D. dissertation “On Serre’s problem on projective modules” under H. Furstenberg in 1977.
 
He joined the Department of Mathematics at the University of Haifa in 1980, was promoted to senior lecturer in 1985, associate professor in 1990, and full professor in 2000.  He held visiting positions at Queen’s University in Kingston, Ontario in 1985-86 and at the University of North Carolina in 1990-91 and served as department chair in 2001-03.  He passed away on September 3, 2025.
 
Moshe wrote more than 60 papers in various areas of algebra and number theory, the last appearing in 2023.  In his early research, finitely generated projective modules over polynomial rings (and extensions) were focal, with important and well-acknowledged contributions towards the solution of Serre’s famous conjecture, starting with his thesis.
 
Another significant strand in his research was the examination of well known theorems and notions in Noetherian commutative ring theory and their possible counterparts in the non-Noetherian world.  The list of topics includes Mori rings, stable rings, Bezout domains, Nagata’s class group theorem, and many more.
 
Moshe wrote a few papers in analysis, mostly around the question of when a linear functional is multiplicative.
 
There are also sporadic papers on elementary number theory, finite groups, and conjugacy classes.