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math.AG2025
The tropical critical point and mirror symmetry
Jamie Judd, Konstanze Rietsch
Call a Laurent polynomial `complete' if its Newton polytope is full-dimensional with zero in its interior. We show that if is any complete Laurent polynomial with coefficie…
math.AG2025
A superpotential for Grassmannian Schubert varieties
Konstanze Rietsch, Lauren Williams
While mirror symmetry for flag varieties and Grassmannians has been extensively studied, Schubert varieties in the Grassmannian are singular, and hence standard mirror symmetry sta…
math.AG2025
An anticanonical perspective on G/P Schubert varieties
Changzheng Li, Konstanze Rietsch, Mingzhi Yang
We describe a natural basis of the Cartier class group of an arbitrary Schubert variety in a flag variety of general Lie type. We then characterise when the Schuber…