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Lefschetz type theorems for algebraic cycles and vector bundles

Duke Math Department
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Friday, March 29, 2019
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3:15 pm - 4:15 pm
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Ravindra Girivaru (University of Missouri - St. Louis, Mathematics)
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Algebraic Geometry

The Weak Lefschetz theorem (or the Lefschetz hyperplane theorem) states that for a smooth, projective variety Y and a smooth hyperplane section X in Y, the restriction map of cohomologies H^i(Y) to H^i(X) is an isomorphism for i