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Showing 2023Show all
2 papers · 1 filter
math.DG2023★ 1 cited
A note on the shifted Courant-Nijenhuis torsion
Marco Aldi, Sergio Da Silva, Daniele Grandini
We characterize the vanishing of the shifted Courant-Nijenhuis torsion as the strongest tensorial integrability condition that can be imposed on a skew-symmetric endomorphism of th…
math.AG2023★ 1 cited
Gröbner geometry for regular nilpotent Hessenberg Schubert cells
Mike Cummings, Sergio Da Silva, Megumi Harada +1
A regular nilpotent Hessenberg Schubert cell is the intersection of a regular nilpotent Hessenberg variety with a Schubert cell. In this paper, we describe a set of minimal generat…