2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/149171It is shown that tachyons are associated with unitary representations of Poincare mappings induced from SO(2) little group instead of SO(2,1) one. This allows us to treat more seriously possibility that neutrinos are fermionic tachyons according to the present experimental data.8 pp., RevTeX (AmSsymb removed, due to reported troubles with processing)High Energy Physics - TheoryAstrophysicsGeneral Relativity and Quantum CosmologyHigh Energy Physics - Phenomenologytext