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St. Petersburg Mathematical Journal

ISSN 1547-7371(online) ISSN 1061-0022(print)



Transfer of the unitary $ K_1$-functor under polynomial extensions

Author: V. I. Kopeiko
Translated by: N. A. Vavilov
Original publication: Algebra i Analiz, tom 29 (2017), nomer 3.
Journal: St. Petersburg Math. J. 29 (2018), 447-467
MSC (2010): Primary 18F25
Published electronically: March 30, 2018
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Abstract: Transfer of the unitary $ K_1$-functor under polynomial extensions of unitary rings is constructed and composition of this transfer with the natural homomorphism induced by embedding of polynomial rings is computed. As an application of the composition formula, unitary $ K_1$-analogs of Springer and Farrell theorems are proved.

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Additional Information

V. I. Kopeiko
Affiliation: Gorodovikov Kalmyk State University, Pushkin street 11, Elista 358000, Russia

Keywords: Unitary ring, unitary matrix, unitary group, unitary $K_1$-functor, transfer, hyperbolic homomorphism, Witt group, Witt cogroup, unitary Bass' nilpotent $K_1$-group
Received by editor(s): March 3, 2016
Published electronically: March 30, 2018
Additional Notes: Supported by RFBR (grant no. 16-01-00148)
Article copyright: © Copyright 2018 American Mathematical Society

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