DATE2022-09-22 16:10-17:00

PLACE數學系館 1F3174教室

SPEAKERDr. Mikami, Ryota(中央研究院數學研究所

TITLETropical Geometry and Cohomology

ABSTRACT Tropical geometry is a combinatorial analog of algebraic geometry. Some invariants of algebraic varieties can be expressed as invariants of their tropicalizations. In particular, tropical cohomology is isomorphic to cohomology of algebraic varieties in some case, and is isomorphic to Chow groups (i.e., formal sums of algebraic subvarieties modulo certain equivalence relations) in another case. In this talks, I would like to introduce tropical geometry and tropical cohomology.