Skip to Content

Sponsors

No results

Keywords

No results

Types

No results

Search Results

Events

No results
Search events using: keywords, sponsors, locations or event type
When / Where
All occurrences of this event have passed.
This listing is displayed for historical purposes.

Presented By: Combinatorics Seminar - Department of Mathematics

Combinatorics Seminar: Quantum Bruhat graphs and tilted Richardson varieties

Shiliang Gao

A two-point curve neighborhood is the union of degree d rational curves that pass through two given Schubert varieties in the flag variety. These varieties were introduced by Buch-Chaput-Mihalcea-Perrin in 2013. They encode information about the 3-point Gromov-Witten invariants of the flag variety. Postnikov proved there is a unique minimal degree where the curve neighborhood is non-empty and described it using the quantum Bruhat graph. In this case, we provide a concrete description of the curve neighborhood in terms of the combinatorics of tilted Bruhat order and a stratification with open tilted Richardson varieties. This is joint work with Jiyang Gao and Yibo Gao.

Explore Similar Events

  •  Loading Similar Events...

Keywords


Back to Main Content