Title: Combinatorial approach to the conjugacy-class algebra of the symmetric group
Speaker: Prof. Jacob Katriel, Technion - Israel Institute of Technology, Haifa
Date: 14 September 2007
Time: 4.00 p.m.
Venue: Lecture Hall - I, Dept. of Mathematics
For A=(1)^{l_1}(2)^{l_2}…(n)^{l_n} a conjugacy class in S_n, let
Supp(A)=\\Sum_{i=1}^n i\\cdot l_i=n-l_1
Evaluation of the coefficient of the calss-sum C in the product of the class sums A and B is reduced to a combinatorial problem in S_k, where k=min{Supp(A),Supp(B),Supp(C)}
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