NObodies are perfect, semigroups are not

Abstract: Newton-Okounkov bodies are asymptotic limits of certain valuation semigroups. Their construction depends on a given flag of subvarieties. We investigate toric surfaces together with non-toric flags and determine when the associated valuation semigroups are finitely generated. This is a joint work with K. Altmann, C. Haase, A. Küronya, and L. Walter.

algebraic geometrycombinatorics

Audience: researchers in the topic

Tropical Geometry in Frankfurt/Zoom TGiF/Z

Series comments: Description: An afternoon seminar series on tropical geometry, known as the TGiZ ("Tropical Geometry in Zoom") or the TGiF ("Tropical Geometry in Frankfurt") seminar.

Please send an email to one of the organizers at the latest one day before a session if you wish to receive the Zoom link and password.

Videos of some past talks are available on YouTube here, while some slides can be found here.