Centre of Unitary Subgroup of Modular Group Algebra's

摘要

We establish the structure of the centre of V∗(F2k (M2n+1 )),V∗(F2k (M2n+1 × C2)) and V∗(F2k ((M2n+1 × C2) × C2)) over a finitefield of characteristics 2 where M2n+1 = ψ, λψ2n = λ2 = 1, λψ =ψ2n+1λ is the Modular group having order 2n+1 and C2 is a cyclicgroup of order 2.