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JOURNALS // Sibirskii Matematicheskii Zhurnal // Archive

Sibirsk. Mat. Zh., 2024 Volume 65, Number 6, Pages 1214–1226 (Mi smj7920)

This article is cited in 2 papers

Automorphism groups of pre-Lie Witt doubles

A. P. Pozhidaev

Sobolev Institute of Mathematics, Novosibirsk, Russia

Abstract: Let ${\mathscr A}$ be a finite-dimensional associative commutative $d$-simple algebra but not a field with nonzero derivation $d$ over an algebraically closed field $F$. We describe the automorphisms of the left-symmetric Witt doubles ${\mathscr A}_d$ and ${\mathscr W}_d({\mathscr A})$ over $F$ modulo the automorphisms of ${\mathscr A}$ almost commuting with $d$.

Keywords: left-symmetric algebra, right-symmetric algebra, simple algebra, pre-Lie algebra, Witt double, automorphism.

UDC: 512.57

MSC: 35R30

Received: 03.07.2024
Revised: 23.09.2024
Accepted: 23.10.2024

DOI: 10.33048/smzh.2024.65.612


 English version:
Siberian Mathematical Journal, 2024, 65:6, 1379–1389


© Steklov Math. Inst. of RAS, 2026