Let Ω_m = diag(1, ω, ω^2, . . .) where ω = cos (2k+1)\pi/m + isin (2k+1)\pi/m (k = 0, 1, . . . ,m −1)
is a root of z^m = −1. If A^−1 = Ω_mAΩ_{m}^{−1} for an invertible complex matrix A then we
call A the mpseudo involution. In this paper, we characterize all m-pseudo involutions in the
Riordan group and m-pseudo involutions related to the commutators are explored.
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