IMSc Webinar

The mysterious Kronecker coefficients

Greta Panova

University of Southern California

Seminar website: www.imsc.res.in/~amri/algcomb/
Zoom link: us02web.zoom.us/j/89517445701?pwd=aklSSTlVVFBndkJQMGEveW9jeUM0Zz09
Meeting ID: 895 1744 5701; Password: Littlewood

Ever since their definition in the 1930s, as multiplicities of irreducible symmetric group representations in the tensor product of two others, the Kronecker coefficients have eluded our attempts to describe them combinatorially or to compute them efficiently. Computational complexity gives us the tools to formalize that mysteriousness. We will discuss their "hardness" and show how to obtain some effective bounds despite the lack of efficient formulas.