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arXiv · 1703.03049

Aspects of enumerative geometry with quadratic forms

Marc Levine
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Abstract

We develop various aspects of classical enumerative geometry, including Euler characteristics and formulas for counting degenerate fibres in a pencil, with the classical numerical formulas being replaced by identitites in the Grothendieck-Witt group of quadratic forms with coefficients in the base-field.

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Marc Levine. 2017-03-08. Aspects of enumerative geometry with quadratic forms. https://doi.org/10.25537/dm.2020v25.2179-2239

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