Neutrino mass matrices with two vanishing elements/cofactors

We study the phenomenological implications of the recent neutrino data for class B of two texture zeros and two vanishing cofactors for Majorana neutrinos in the flavor basis. We find that the classes B₁ (B₂) of two texture zeros and the classes B₅ (B₆) of two vanishing cofactors have similar predictions for neutrino oscillation parameters for the same mass hierarchy. Similar predictions for the classes B₃ (B₄) of two texture zeros and classes B₃ (B₄) of two vanishing cofactors are expected. However, a preference for a shift in the quadrant of the Dirac-type CP-violating phase () in contrast to the earlier analysis has been predicted for a relatively large value of the reactor neutrino mixing angle (₁₃) for class B of two texture zeros and two vanishing cofactors for an inverted mass spectrum. No such shift in the quadrant of has been found for the normal mass spectrum.