2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/54737We analyze dispersion relations of the equations recently proposed by Ahluwalia for describing neutrino. Equations for type-II spinors are deduced on the basis of the Wigner rules for left- and right- 2-spinors and the Ryder-Burgard relation. It is shown that equations contain acausal solutions which are similar to those of the Dirac-like second-order equation. The latter is obtained in a similar way, provided that we do not apply to any constraints in the process of its deriving.ReVTeX file, 5pp., no figuresHigh Energy Physics - Theorytext