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arXiv · 2601.05089

Horn inequalities on a quiver with an involution

Antoine Médoc
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Abstract

Derksen and Weyman described the cone of semi-invariants associated with a quiver. We give an inductive description of this cone, followed by an example of refinement of the inequalities characterising anti-invariant weights in the case of a quiver equipped with an involution.

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Antoine Médoc. 2026-01-08. Horn inequalities on a quiver with an involution. https://arxiv.org/abs/2601.05089

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