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arXiv · 1206.1781

Comments on the ELSV compactification of Hurwitz stacks

Bashar Dudin
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Abstract

We revisit Ekedahl, Lando, Shapiro and Vainshtein's compactification of the stack of simply ramified covers of the projective line except for a fixed ramification profile above infinity. In particular we draw a connection with the Harris and Mumford stack of admissible covers showing that the boundary of the ELSV compactification appears as a contraction of the boundary of the stack of admissible covers. This lays the needed foundations for a combinatoral interpretation of boundary points of the ELSV compactification

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Bashar Dudin. 2014-02-15. Comments on the ELSV compactification of Hurwitz stacks. https://arxiv.org/abs/1206.1781

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