Corrigendum to “Orbit closures in the enhanced nilpotent cone” [Adv. Math. 219 (1) (2008) 27–62] |
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Authors: | Pramod N Achar Anthony Henderson |
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Institution: | aDepartment of Mathematics, Louisiana State University, Baton Rouge, LA 70803, USA;bSchool of Mathematics and Statistics, University of Sydney, NSW 2006, Australia |
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Abstract: | In this note, we point out an error in the proof of Theorem 4.7 of P.N. Achar, A. Henderson, Orbit closures in the enhanced nilpotent cone, Adv. Math. 219 (1) (2008) 27–62], a statement about the existence of affine pavings for fibres of a certain resolution of singularities of an enhanced nilpotent orbit closure. We also give independent proofs of later results that depend on that statement, so all other results of that paper remain valid. |
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Keywords: | Enhanced nilpotent cone Intersection cohomology Affine pavings Purity |
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