Combinatorial Models for the Variety of Complete Quadrics

28 Nov 2017 Banerjee Soumya Can Mahir Bilen Joyce Michael

We develop several combinatorial models that are useful in the study of the $SL_n$-variety $\mathcal{X}$ of complete quadrics. Barred permutations parameterize the fixed points of the action of a maximal torus $T$ of $SL_n$, while $\mu$-involutions parameterize the orbits of a Borel subgroup of $SL_n$... (read more)

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Categories


  • ALGEBRAIC GEOMETRY
  • COMBINATORICS