Tag Archives: Morse 2-function

Reconstructing 4-manifolds from Morse 2-functions – arXiv:1202.3487

A Morse function is a generic map to the real line. A Morse 2-function is generic map to the plane, or other 2-manifold. These functions featured prominently in my dissertation where I used them to give a classification of 2D topological field theories in terms of generators and relations. Now David Gay and Robion Kirby are using them to study 4-manifolds.
Continue reading