Lecture notes on trisections and cohomology
نویسندگان
چکیده
In these notes, we describe several geometric interpretations of $H^2(X)$ when $X$ is a trisected 4-manifold. The main insight that, by analogy with Hodge theory and sheaf cohomology in algebraic geometry, classes can be usefully interpeted as $(1,1)$-classes. These notes formed the first half an aborted seminar on symplectic trisections at Max Planck Institute for Mathematics during Spring 2020.
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ژورنال
عنوان ژورنال: The open book series
سال: 2022
ISSN: ['2329-9061', '2329-907X']
DOI: https://doi.org/10.2140/obs.2022.5.245