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Bibliographic Details
Main Authors: Liu, Si-Yang, Zhang, Yilong
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2603.21518
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Table of Contents:
  • For a smooth projective variety $X\subseteq \mathbb P^N$ over an algebraically closed field of char $0$, we show that the discriminant locus of a generic projection of $X$ is projectively dual to a general linear section of the dual variety, and deduce a purity statement for the discriminant. Over $\mathbb C$, we also show that the fundamental group of the complement of the branch divisor arising from generic projection of a normal hypersurface surjects onto a braid group via braid monodromy.