On weak Fano manifolds with small contractions obtained by blow-ups of a product of projective spaces
Toru Tsukioka
Abstract
Toru Tsukioka
Abstract
Abstract We consider weak Fano manifolds with small contractions obtained by blowing up successively curves and subvarieties of codimension 2 in the product of a projective space and a projective line. We give a classification result for a special case. We determine the nef cones and describe the extremal contractions for related smooth projective varieties.
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Abstract We consider weak Fano manifolds with small contractions obtained by blowing up successively curves and subvarieties of codimension 2 in the product of a projective space and a projective line. We give a classification result for a special case. We determine the nef cones and describe the extremal contractions for related smooth projective varieties.
Key concepts: Fano plane, Mathematics, Codimension, Pure mathematics, Projective test, Projective space, Projective line, Complex projective space