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math.GR2012★ 1 cited
Determination of Conjugacy Class Sizes from Products of Characters
Ivan Andrus, Pál Hegedűs
Robinson showed that the character degrees are determined by knowing, for all , the number of ways that the identity can be expressed as a product of commutators. Earlier, S…
math.GR2007
On the number of generators needed for free profinite products of finite groups
Miklos Abert, Pal Hegedus
We provide lower estimates on the minimal number of generators of the profinite completion of free products of finite groups. In particular, we show that if C_1,...,C_n are finite…