Unibranch orbit closures in module varieties
نویسندگان
چکیده
منابع مشابه
Regularity in codimension one of orbit closures in module varieties
Let Md(k) denote the space of d×d-matrices with coefficients in an algebraically closed field k. Let X be an orbit closure in the product [Md(k)] t equipped with the action of the general linear group GLd(k) by simultaneous conjugation. We show that X is regular at any point y such that the orbit of y has codimension one in X. The proof uses mainly the representation theory of associative algeb...
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ژورنال
عنوان ژورنال: Annales Scientifiques de lʼÉcole Normale Supérieure
سال: 2002
ISSN: 0012-9593
DOI: 10.1016/s0012-9593(02)01110-2