Action of general linear groups on grassmannians
作者:
Patrick Rabau,
期刊:
Communications in Algebra
(Taylor Available online 1992)
卷期:
Volume 20,
issue 7
页码: 1989-2014
ISSN:0092-7872
年代: 1992
DOI:10.1080/00927879208824443
出版商: Marcel Dekker, Inc.
数据来源: Taylor
摘要:
LetAbe a finite dimensional commutative semisimple algebra over a fieldkand letVbe a finitely generatedA—module. In previous work the author examined the action of the general linear group GLA(V) on the Grassmannians ofk—subspaces ofV. The present paper examines the structure of the orbits in greater detail, in particular by working out the structure of the stabilizers in each of the cases when dimkA≤3. From an algebraic point of view the most interesting situation occurs forAa cubic extension field ofk
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