Very Strange Projective Curves |
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Authors: | E Ballico |
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Institution: | 1. Dept. of Mathematics, University of Trento, 38050, Povo (TN), Italy
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Abstract: | Let Y ? Pn, n ≥ 3, be an integral non-degenerate very strange projective curve, i.e. assume that the general hyperplane section of Y is not in linearly general position; hence we are in characteristic p. Let π: X → Y be the normalization. Set d? deg(Y), g? Pa(X) and L? π* (Oy(1)). Here we prove that d > 2g?2 and in particular h1(X,L) = 0 and h0(X,L) = d+1?g ≥ (d?1)/2 > n+1. |
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