Affiliation:
1. Department of Mathematics, Tokyo Institute of Technology, Tokyo, Japan
Abstract
Feller et al. showed the homology and the intersection form of a closed trisected four-manifold are described in terms of trisection diagram. In this paper, it is confirmed that we are able to calculate those of a trisected four-manifold with boundary in a similar way. Moreover, we describe a representative of the second Stiefel–Whitney class by the relative trisection diagram.
Publisher
World Scientific Pub Co Pte Ltd
Subject
Algebra and Number Theory