Vanishing thetanull and hyperelliptic cu
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Olivier Schneider
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Article
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2007
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John Wiley and Sons
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English
β 152 KB
## Abstract Let β³οΈ~__g__,2~ be the moduli space of curves of genus __g__ with a levelβ2 structure. We prove here that there is always a non hyperelliptic element in the intersection of four thetanull divisors in β³οΈ~6,2~. We prove also that for all __g__ β₯ 3, each component of the hyperelliptic locu