3 papers
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…
math.AG2025
Unfolding of equivariant F-bundles and application to the mirror symmetry of flag varieties
Thorgal Hinault, Changzheng Li, Tony Yue YU +2
We establish an unfolding theorem for equivariant F-bundles (a variant of Frobenius manifolds), generalizing Hertling-Manin's universal unfolding of meromorphic connections. As an…
math.AG2024
A Plücker coordinate mirror for partial flag varieties and quantum Schubert calculus
Changzheng Li, Konstanze Rietsch, Mingzhi Yang +1
We construct a Plücker coordinate superpotential that is mirror to a partial flag variety . Its Jacobi ring recovers the small quantum c…