Supercharacters of unitriangular groups and ramification graphs
 
 
Description:  Supercharacter theories are generalizations of the usual character theory of a group. In this talk, we present the basics of supercharacter theory, emphasizing the supercharacter theory of the unitriangular groups and its combinatorial interpretations. In the second part of the talk, we construct graded graphs using restriction and superinduction of supercharacters and use them to determine the extreme supercharacters of the infinite unitriangular group.
Date:  2018-05-02
Start Time:   14:00
Speaker:  Filipe Gomes (Univ. Lisboa)
Institution:  Universidade de Lisboa
Place:  Room 5.5, Department of Mathematics, U.C.
Research Groups: -Algebra and Combinatorics
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