Hessenberg varieties and hyperplane arrangements
نویسندگان
چکیده
منابع مشابه
Hessenberg Varieties and Hyperplane Arrangements
Given a semisimple complex linear algebraic group G and a lower ideal I in positive roots of G, three objects arise: the ideal arrangement AI , the regular nilpotent Hessenberg variety Hess(N, I), and the regular semisimple Hessenberg variety Hess(S, I). We show that a certain graded ring derived from the logarithmic derivation module of AI is isomorphic to H∗(Hess(N, I)) and H∗(Hess(S, I)) , t...
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ژورنال
عنوان ژورنال: Journal für die reine und angewandte Mathematik (Crelles Journal)
سال: 2020
ISSN: 1435-5345,0075-4102
DOI: 10.1515/crelle-2018-0039