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TOTAL POSITIVITY IN SPRINGER FIBRES
Name
1909.00896.pdf
Description
Submitted version
Size
222.89 KB
Format
Adobe PDF
Checksum (MD5)
8541f4f5f82782763bd4db78c48d7cfa
Author(s)
Lusztig, G
Date Issued
2021
Journal
Quarterly Journal of Mathematics
Publisher
Oxford University Press (OUP)
Version
Original manuscript
Abstract
Abstract
Let u be a unipotent element in the totally positive part of a complex reductive group. We consider the intersection of the Springer fibre at u with the totally positive part of the flag manifold. We show that this intersection has a natural cell decomposition which is part of the cell decomposition (Rietsch) of the totally positive flag manifold.
Let u be a unipotent element in the totally positive part of a complex reductive group. We consider the intersection of the Springer fibre at u with the totally positive part of the flag manifold. We show that this intersection has a natural cell decomposition which is part of the cell decomposition (Rietsch) of the totally positive flag manifold.
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Creative Commons Attribution-Noncommercial-Share Alike
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DOI of Published Version
10.1093/QMATHJ/HAAA021