1-2-3 Seminar: A tropical framework for using Porteous' formula

Given a tropical cycle X, one can talk about a notion of ''tropical" vector bundles on X having tropical fibers. By restricting our attention to bounded rational sections of these bundles, one can develop a good notion of characteristic classes that behave as expected classically. We present further results on these characteristic classes and use these properties to prove a Porteous' formula for these bundles, which gives a determinantal expression of the fundamental class of degeneracy loci of a (tropical) bundle morphism in terms of their Chern classes. 

Zoom Link: https://washington.zoom.us/j/92849568892