The dimension of an amoeba (Johannes Rau, Tübingen)

08.11.2019 14:00 – 15:00

Amoebas are projections of alegbraic varieties in logarithmic coordinates and were originally introduced by Gelfand, Kapranov and Zelevinsky in their influential book. Based on some computation, Nisse and Sottile formulated some questions concerning the dimension of amoebas.

In a joint work with Jan Draisma and Chi Ho Yuen, we answer these questions by providing a general formula that computes the dimension of amoebas.

If time permits, we also discuss the consequences of this formula for matroidal fans.

Lieu

Bâtiment: Battelle

Villa Battelle, Séminaire "Fables géométriques"

entrée libre