Staircase diagrams and the enumeration of smooth Schubert varieties
Résumé
In this extended abstract, we give a complete description and enumeration of smooth and rationally smooth Schubert varieties in finite type. In particular, we show that rationally smooth Schubert varieties are in bijection with a new combinatorial data structure called staircase diagrams.
Domaines
Combinatoire [math.CO]
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