# Ryomei Iwasa: Algebraic K-theory and projective bundle formula

**Time: **
Thu 2021-11-11 14.00 - 15.00

**Location: **
Institut Mittag-Leffler, Seminar Hall Kuskvillan (alt. Zoom, meeting ID: 921 756 1880)

**Participating: **
Ryomei Iwasa (University of Copenhagen)

**Abstract:** I will report a joint work in progress with Toni Annala. I will explain a characterization of algebraic K-theory of schemes by projective bundle formula: More precisely, algebraic K-theory is an initial Zariski sheaf of ring spectra which is equipped with a multiplicative map from \(BG_m\) and satisfies the projective bundle formula.