Generalised Mennicke-Newman lemma
Abstract
Mennicke--Newman lemma for unimodular rows was used by W. van der Kallen to give a group structure on the orbit set Umn(R)En(R) for a commutative noetherian ring of dimension d≤ 2n-4. In this paper, we generalise the Mennicke--Newman lemma for m× n right invertible matrices.
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