2 papers
math.RA2021
On the counterexamples to the unit conjecture for group rings
Donald S. Passman
We offer two comments on the beautiful papers of Giles Gardam and Alan Murray that yield counterexamples to the Kaplansky unit conjecture. First we discuss the determinants of thes…
math.RA2019
Finite Presentation
Donald S. Passman, Lance W. Small
This paper surveys basic properties of finite presentation in groups, Lie algebras and rings. It includes some new results and also new, more elementary proofs, of some results tha…