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We introduce the moduli space of hybrid curves as the hybrid compactification of the moduli space of curves thereby refining the one obtained by Deligne and Mumford. As the main theorem of this paper we then show that the universal family of canonically measured hybrid curves over this moduli space varies continuously. On the way to achieve this, we present constructions and results which we hope could be of independent interest. In particular, we introduce higher rank variants of hybrid spaces which refine and combine both the ones considered by Berkovich, Boucksom and Jonsson, and metrized complexes of varieties studied by Baker and the first named author. Furthermore, we introduce canonical measures on hybrid curves which simultaneously generalize the Arakelov-Bergman measure on Riemann surfaces, Zhang measure on metric graphs, and Arakelov-Zhang measure on metrized curve complexes. This paper is part of our attempt to understand the precise link between the non-Archimedean Zhang measure and variations of Arakelov-Bergman measures in families of Riemann surfaces, answering a question which has been open since the pioneering work of Zhang on admissible pairing in the nineties.
We compute the number of moduli of all irreducible components of the moduli space of smooth curves on Enriques surfaces. In most cases, the moduli maps to the moduli space of Prym curves are generically injective or dominant. Exceptional behaviour is
A fine moduli space is constructed, for cyclic-by-$mathsf{p}$ covers of an affine curve over an algebraically closed field $k$ of characteristic $mathsf{p}>0$. An intersection of finitely many fine moduli spaces for cyclic-by-$mathsf{p}$ covers of af
Let ${cal M}_{g,[n]}$, for $2g-2+n>0$, be the D-M moduli stack of smooth curves of genus $g$ labeled by $n$ unordered distinct points. The main result of the paper is that a finite, connected etale cover ${cal M}^l$ of ${cal M}_{g,[n]}$, defined over
This paper is built on the following observation: the purity of the mixed Hodge structure on the cohomology of Browns moduli spaces is essentially equivalent to the freeness of the dihedral operad underlying the gravity operad. We prove these two fac
Let $X$ be a smooth projective curve of genus $g geq 2$ and $M$ be the moduli space of rank 2 stable vector bundles on $X$ whose determinants are isomorphic to a fixed odd degree line bundle $L$. There has been a lot of works studying the moduli and