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Autor:
Vetluzhskikh, Mariia, Zakharov, Dmitry
A harmonic cover of graphs $p:\widetilde{X}\to X$ induces a surjective pushforward morphism $p_*:\operatorname{Jac}(\widetilde{X})\to \operatorname{Jac}(X)$ on the critical groups. In the case when $p$ is Galois with abelian Galois group, we compute
Externí odkaz:
http://arxiv.org/abs/2409.04629
