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math.CO2020
Gröbner geometry of Schubert polynomials through ice
Zachary Hamaker, Oliver Pechenik, Anna Weigandt
The geometric naturality of Schubert polynomials and their combinatorial pipe dream representations was established by Knutson and Miller (2005) via antidiagonal Gröbner degenerati…
math.CO2020
Bumpless pipe dreams and alternating sign matrices
Anna Weigandt
In their work on the infinite flag variety, Lam, Lee, and Shimozono (2018) introduced objects called bumpless pipe dreams and used them to give a formula for double Schubert polyno…