Pictures for the talk, Sochi Oct. 26

Pictures and definitions – companion guide (not self-contained) for my blackboard talk “Push-pull polytopes and projective line bundles” on the conference “Topology of torus actions and related topics”

References:

• Push-pull operators on convex polytopes (revised version)
• Andrei Okounkov, Lectures on K-theoretic computations in enumerative geometry
• Naoki Fujita, Schubert calculus from polyhedral parametrizations of Demazure crystals