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arxiv: 0904.3591 · v1 · submitted 2009-04-23 · 🧮 math.AG

The moduli space of genus 4 even spin curves is rational

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keywords genusmodulirationalspacecouplecurvecurvesdivisor
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By the technique of 3-fold Mori theory, we prove that the moduli space whose general point parameterizes a couple of a smooth curve of genus 4 and a halfcanonical divisor with vanishing global section is rational.

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