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The discrete flavor symmetry A4 explains very well neutrino data at lowenergy, but it seems difficult to extend it to grand unified models since ingeneral left-handed and right-handed fields belong to different A4representations. Recently it has been proposed a model where all the fermionsequally transform under A4. We study here a concrete SO(10) realization of sucha model providing small neutrino masses through the seesaw mechanism. We fit attree level the charged fermion masses run up to the unification scale. Somefermion masses properties come from the SO(10) symmetry while lepton mixingangles are consequence of the A4 properties. Moreover, our model predicts theabsolute value of the neutrino masses, these ones are in the range $m_\nu\simeq0.005-0.052 eV$.Comment: 15 pages. V2: Final version to appear in the journa

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

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Model for fermion masses and lepton mixing inSO(10)×A4