Closure relations of Newton strata in Iwahori double cosets
Trentin S., Viehmann E.
Research article (journal) | Peer reviewedAbstract
We consider the Newton stratification on Iwahori double cosets for a connected reductive group. We prove the existence of Newton strata whose closures cannot be expressed as a union of strata, and show how this is implied by the existence of non-equidimensional affine Deligne–Lusztig varieties. We also give an explicit example for a group of type A4.
Details about the publication
Journal: Manuscripta Mathematica (Manuscripta Math.)
Volume: 2021
Status: Published
Release year: 2021
Language in which the publication is written: English
Link to the full text: https://api.elsevier.com/content/abstract/scopus_id/85121383049
Keywords: Newton Strata; loop groups; arithmetic geometry; affine Deligne-Lusztig varieties
Authors from the University of Münster
| Viehmann, Eva | Professorship for Theoretical Mathematics (Prof. Viehmann) |