  Motivated by cosmological considerations, and by the atmospheric and solar
neutrino flux deficits, we consider the scenario in which the three Standard
Model neutrinos are endowed with a nearly equal Majorana mass in the eV range.
Combined constraints coming from (1) direct search for electron neutrino mass,
(2) absence of neutrinoless double beta decay, and (3) unsuppressed electron
neutrino flux in present reactor experiments, imply a quite well specified
pattern of neutrino masses and mixing angles. We discuss the experimental tests
of the model and comment on the features of this scenario.
