2 papers
math.CT2009
Limits over categories of extensions
Roman Mikhailov, Inder Bir S. Passi
We consider limits over categories of extensions and show how certain well-known functors on the category of groups turn out as such limits. We also discuss higher (or derived) lim…
math.RA2007
Hyperbolic Unit Groups and Quaternion Algebras
S. O. Juriaans, I. B. S. Passi, A. C. Souza Filho
We Classify the rational quadratic extensions K and the finite groups G for which the group ring R[G] of G over the ring R of integers of K has the property that the group of units…