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algebraic geometry 1euler characteristic 1quiver grassmannians 1semi-invariants 1torus localization 1

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math.AG2026

Euler Characteristics of Generic Quiver Grassmannians: Semi-Invariants and Localization

Jiarui Fei

The paper computes the top Euler characteristic of generic quiver Grassmannians by expressing it as a signed sum of covariant multiplicities (semi‑invariant weight‑space dimensions…