Algebra and Algebraic Geometry Seminar Spring 2023: Difference between revisions
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|Maxim | |Maxim | ||
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|March 24 | |||
|Daniel Corey | |||
|Degenerations of flag varieties and subdivisions of generalized permutahedra | |||
|Rodriguez | |||
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== Abstracts == | == Abstracts == | ||
=== Speaker | === Speaker Daniel Corey === | ||
==== Title | ==== Title Degenerations of flag varieties and subdivisions of generalized permutahedra ==== | ||
We study the initial degenerations of the type-A flag varieties, and show how they are related to flag matroid strata and subdivisions of flag matroid polytopes. As applications, we give a complete proof of a conjecture of Keel and Tevelev on log canonical compactifications of moduli spaces of hyperplanes in projective space in general position, and study the Chow quotient of the complete flag variety by the diagonal torus of the projective linear group. This is based on joint work with Olarte and Luber. | |||
Revision as of 15:13, 10 January 2023
The seminar normally meets 2:30-3:30pm on Fridays, in the room TBD.
Algebra and Algebraic Geometry Mailing List
- Please join the AGS mailing list by sending an email to ags+join@g-groups.wisc.edu to hear about upcoming seminars, lunches, and other algebraic geometry events in the department (it is possible you must be on a math department computer to use this link).
Spring 2023 Schedule
| date | speaker | title | host/link to talk | |
|---|---|---|---|---|
| February 24 | Ruijie Yang | TBA | Maxim | |
| March 24 | Daniel Corey | Degenerations of flag varieties and subdivisions of generalized permutahedra | Rodriguez |
Abstracts
Speaker Daniel Corey
Title Degenerations of flag varieties and subdivisions of generalized permutahedra
We study the initial degenerations of the type-A flag varieties, and show how they are related to flag matroid strata and subdivisions of flag matroid polytopes. As applications, we give a complete proof of a conjecture of Keel and Tevelev on log canonical compactifications of moduli spaces of hyperplanes in projective space in general position, and study the Chow quotient of the complete flag variety by the diagonal torus of the projective linear group. This is based on joint work with Olarte and Luber.