On the rationality of some moduli spaces related to pointed trigonal curves

• Autores: Gianfranco Casnati
• Localización: Mathematica scandinavica, ISSN 0025-5521, Vol. 111, Nº 2, 2012, págs. 169-178
• Idioma: inglés
• DOI: 10.7146/math.scand.a-15222
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• Resumen

  • For each g≥1, let Tg,n⊆Mg,n be the locus of points corresponding to curves carrying a base-point-free g13. Here we give a proof that Tg,n is rational if g≥4 and 1≤n≤2g+7.