Abstract
Supersymmetric $SU(5)$ GUT augmented with anomaly-free $U(1{)}_{F}$ flavor symmetry is presented. A very economical field content and $U(1{)}_{F}$ charge assignment are obtained by specific construction. In particular, three families of $10+\overline{5}$ chiral matter, along with the $SU(5)$ singlet states (some of which serve as right-handed neutrinos) are obtained. Appealing texture zero Yukawa matrices provide a natural understanding of hierarchies between charged fermion masses and mixings. The model predicts an inverted hierarchical neutrino mass scenario with interesting implications.
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