Exceptional Loci on bar M_(0,n) and Hypergraph Curves
classification
🧮 math.AG
keywords
curveshypergraphbasicbirationalbrill--noethercorrespondingcurvedivisors
read the original abstract
We give a myriad of examples of extremal divisors, rigid curves, and birational morphisms with unexpected properties for the Grothendieck--Knudsen moduli space $\bar M_{0,n}$ of stable rational curves. The basic tool is an isomorphism between $M_{0,n}$ and the Brill--Noether locus of a very special reducible curve corresponding to a hypergraph.
This paper has not been read by Pith yet.
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.