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Fibred rational surfaces with extremal Mordell-Weil lattices
Authors:Email author" target="_blank">Shinya?KitagawaEmail author  Kazuhiro?Konno
Institution:(1) Department of Mathematics, Graduate School of Science, Osaka University, Machikaneyama 1–16, Toyonaka, Osaka 560-0043, Japan
Abstract:Slope inequalities are given for fibred rational surfaces according as the Clifford index of a general fibre. For fibred rational surfaces of Clifford index two, the Mordell-Weil lattices of maximal ranks are completely determined.Supported by The 21st Century COE Program named “Towards a new basic science: depth and synthesis”.
Keywords:14J26  14D06
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