2 papers
math.GT2024
Diffeomorphisms of the 4-sphere, Cerf theory and Montesinos twins
David T. Gay
One way to better understand the smooth mapping class group of the 4-sphere would be to give a list of generators in the form of explicit diffeomorphisms supported in neighborhoods…
math.GT2024
Constructing Lagrangians from triple grid diagrams
Sarah Blackwell, David T. Gay, Peter Lambert-Cole
Links in can be encoded by grid diagrams; a grid diagram is a collection of points on a toroidal grid such that each row and column of the grid contains exactly two points. G…