In this article, an analog of the Quillen–Suslin’s local-global principle was established for the elementary subgroup of the general quadratic group and the general Hermitian group. It is shown that unstable K1-groups of the general Hermitian groups over module finite rings are nilpotent-by-Abelian. This generalizes earlier results by A. Bak, R. Hazrat, and N. Vavilov.
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Dedicated to the memory of late Professor Amit Roy
Published in Zapiski Nauchnykh Seminarov POMI, Vol. 452, 2016, pp. 5–31.
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Basu, R. Local-Global Principle for the General Quadratic and General Hermitian Groups and the Nilpotency of KH1. J Math Sci 232, 591–609 (2018). https://doi.org/10.1007/s10958-018-3891-0
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DOI: https://doi.org/10.1007/s10958-018-3891-0