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Homotopy Theory Seminar - Ernie Fontes

Homotopy Theory Seminar
October 3, 2019
11:30AM - 12:30PM
Math Tower 154

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Add to Calendar 2019-10-03 11:30:00 2019-10-03 12:30:00 Homotopy Theory Seminar - Ernie Fontes Title: Algebraic K-Theory for 2-Categories: + = S-inverse-S Speaker: Ernie Fontes, OSU Abstract: For a symmetric monoidal 2-category S, there is a straightforward 2-categorification of Quillen’s S-inverse-S construction for algebraic K-theory due to Gurski–Johnson–Osorno. We build a 2-category Aut(S) which permits a categorified description of algebraic K-theory that generalizes Quillen’s BGL(R)^+ construction and we show that the two approaches agree. As an application, we produce a new model for K_3(R). This talk represents joint work with Niles Johnson and Nick Gurski. Seminar URL: https://www.asc.ohio-state.edu/fontes.17/homotopy_seminar/ Math Tower 154 Department of Mathematics math@osu.edu America/New_York public

Title: Algebraic K-Theory for 2-Categories: + = S-inverse-S

Speaker: Ernie Fontes, OSU

Abstract: For a symmetric monoidal 2-category S, there is a straightforward 2-categorification of Quillen’s S-inverse-S construction for algebraic K-theory due to Gurski–Johnson–Osorno. We build a 2-category Aut(S) which permits a categorified description of algebraic K-theory that generalizes Quillen’s BGL(R)^+ construction and we show that the two approaches agree. As an application, we produce a new model for K_3(R). This talk represents joint work with Niles Johnson and Nick Gurski.

Seminar URL: https://www.asc.ohio-state.edu/fontes.17/homotopy_seminar/

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