Geometry of hyperfields by Jaiung Jun

Series
Algebra Seminar
Time
Friday, October 5, 2018 - 2:00pm for 1 hour (actually 50 minutes)
Location
Skiles 005
Speaker
Jaiung Jun – University of Iowa – https://sites.google.com/site/jaiungjun0915/
Organizer
Philipp Jell
In this talk, we introduce rather exotic algebraic structures called hyperrings and hyperfields. We first review the basic definitions and examples of hyperrings, and illustrate how hyperfields can be employed in algebraic geometry to show that certain topological spaces (underlying topological spaces of schemes, Berkovich analytification of schemes, and real schemes) are homeomorphic to sets of rational points of schemes over hyperfields.