Even Sets of Nodes Are Bundle Symmetric

Abstract

Let k be an algebraically closed field of characteristic p 6= 2 and let F := {f = 0} ⊆ Pk be a normal surface of degree d. Let π: F̃ → F be a minimal resolution of singularities. We denote by H ⊆ F a general plane section of F defined by a general linear form h. Assume, for simplicity, that F is a nodal surface (i.e. its singularities are only ordinary… (More)

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