Intersection numbers from higher-order partial differential equations
Vsevolod Chestnov, Hjalte Frellesvig, Federico Gasparotto, Manoj Kumar Mandal, Pierpaolo Mastrolia · Journal of High Energy Physics · 2023
Abstract We propose a new method for the evaluation of intersection numbers for twisted meromorphicn-forms, through Stokes’ theorem inndimensions. It is based on the solution of ann-th order partial differential equation and on the evaluation of multivariate residues. We also present an algebraic expression for the contribution from each multivariate residue. We illustrate our approach with a number of simple examples from mathematics and physics.