Torus Actions on Matrix Schubert and Kazhdan-Lusztig Varieties, and their Links to Statistical Models

Elke Neuhaus, Irem Portakal, Niharika Chakrabarty Paul

We investigate the toric geometry of two families of generalised determinantal varieties arising from permutations: Matrix Schubert varieties ($\overline{X_w}$) and Kazhdan-Lusztig…