Finitary group of birational authomorphisms of infinite dimensional affine space over locally finite field (in Ukrainian)

Author
V. Sushchansky, N. Kroshko
Department of Algebra and Mathematical Logic, Taras Shevchenko National University of Kyiv, 6 Glushkova Ave., Kyiv 252163, Ukraine
Abstract
It was proved, that finitary group of birational authomorphisms of infinite-dimensional affine space over a locally finite field is isomorphic to the limit group of a direct spectrum of symmetric groups $Sp^k$, $k\in\Bbb N$, with diagonal embeddings, and its subgroups of triangular or unitriangular transformations can be factorized to the wreath product of infinite series of symmetric or cyclic groups of degree $p$ respectively.
Keywords
finitary group, birational automorphisms, infinite-dimensional affine space, locally finite field, direct limit, symmetric groups, diagonal embeddings
DOI
doi:10.30970/ms.4.1.5-12
Reference
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Pages
5-12
Volume
4
Issue
1
Year
1995
Journal
Matematychni Studii
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