Sextic Double Solids
نویسندگان
چکیده
We study properties of double covers of P ramified along nodal sextic surfaces such as non-rationality, Q-factoriality, potential density, and elliptic fibration structures. We also consider some relevant problems over fields of positive characteristic. 2000 Mathematics Subject Classification. Primary 14E05, 14E08, 14G05, 14G15, 14J17, 14J45. All varieties are assumed to be projective, normal, and defined over the field C unless otherwise stated.
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تاریخ انتشار 2004