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arxiv: 1703.03955 · v2 · pith:2MISCNAAnew · submitted 2017-03-11 · 🧮 math.CO · math.AG

The Cross-section of a Spherical Double Cone

classification 🧮 math.CO math.AG
keywords sphericalactionclosuresconecross-sectiondoubleflaglattice
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We show that the poset of $SL(n)$-orbit closures in the product of two partial flag varieties is a lattice if the action of $SL(n)$ is spherical.

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