Hyperfields, dequantization, Grassmannians, and characteristic classes
Student No.:50
Time:16:30-17:30, 2016-5-27 (Fri.)
Instructor:James F. Davis  [Indiana University]
Place:Lecture hall, Floor 3, Jin Chun Yuan West Building
Starting Date:2016-5-27
Ending Date:2016-5-27




Hyperfields are a generalization of fields where one allows multivalued addition. I will review work of Viro, Connes-Consani, Baker, and Anderson-Davis which defines Grassmann varieties over a hyperfield and studies their topology. This subject is a mixture of combinatorics and topology.