Motives and (super-)representation theory: principles and case studies
De Yves André
Finiteness Questions for Étale Coverings with Bounded Wild Ramification at the Boundary
De Vasudevan Srinivas
Apparaît dans la collection : Combinatorics and Arithmetic for Physics
We prove that, for a tropical rational map if for any point the convex hull of Jacobian matrices at smooth points in a neighborhood of the point does not contain singular matrices then the map is an isomorphism. We also show that a tropical polynomial map on the plane is an isomorphism if all the Jacobians have the same sign (positive or negative). In addition, for a tropical rational map we prove that if the Jacobians have the same sign and if its preimage is a singleton at least at one regular point then the map is an isomorphism. This is a joint work with Danylo Radchenko, ETH (Zürich).