Specialization map for quiver Grassmannians

Giovanni Cerulli Irelli,Francesco Esposito,Xin Fang,Ghislain Fourier

arxiv（2022）

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摘要

We study quiver Grassmannians associated to representations of quivers of type A. We prove that the specialization map for the integral cohomology associated to a degeneration of representation is surjective, generalizing a result of Lanini and Strickland.

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specialization

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