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Fibrations of low genus, I

Fabrizio Catanese·Roberto Pignatelli
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Abstract

In the present paper we consider fibrations $f: S \ra B$ of an algebraic surface onto a curve $B$, with general fibre a curve of genus $g$. Our main results are: 1) A structure theorem for such fibrations in the case $g=2$ 2) A structure theorem for such fibrations in the case $g=3$ and general fibre nonhyperelliptic 3) A theorem giving a complete description of the moduli space of minimal surfaces of general type with $ K^2_S = 3, p_g = q=1$, showing in particular that it has four unirational connected components 4) some other applications of the two structure theorems.

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Fabrizio Catanese, Roberto Pignatelli. 2006-10-19. Fibrations of low genus, I. https://arxiv.org/abs/math/0503294

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