Lecture notes on trisections and cohomology
Geometric Topology
2020-09-15 v1
Abstract
In these notes, we describe several geometric interpretations of when is a trisected 4-manifold. The main insight is that, by analogy with Hodge theory and sheaf cohomology in algebraic geometry, classes in can be usefully interpeted as -classes. These notes formed the first half of an aborted seminar on symplectic trisections at the Max Planck Institute for Mathematics during Spring 2020.
Cite
@article{arxiv.2009.06028,
title = {Lecture notes on trisections and cohomology},
author = {Peter Lambert-Cole},
journal= {arXiv preprint arXiv:2009.06028},
year = {2020}
}