M S Raghunathan
Articles written in Proceedings – Mathematical Sciences
Volume 90 Issue 2 May 1981 pp 103-123
Volume 93 Issue 2-3 December 1984 pp 137-145
We prove that any principal bundle on the affine line over a perfect field with a reductive group as structure group comes from the base field by base change.
Volume 99 Issue 2 August 1989 pp 127-146
It is shown in this paper that if
Volume 114 Issue 4 November 2004 pp 299-308 Invited Articles
This is a short survey of the progress on the congruence subgroup problem since the sixties when the first major results on the integral unimodular groups appeared. It is aimed at the non-specialists and avoids technical details.
Volume 130, 2020
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