A spanning tree model for Khovanov homology, Rasmussen's s-invariant and exotic discs in the $4$-ball

Aninda Banerjee, Apratim Chakraborty, Swarup Kumar Das

The checkerboard coloring of knot diagrams offers a graph-theoretical approach to address topological questions. Champanerkar and Kofman defined a complex generated by the spanning…