Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Fermion Masses and Mixing and CP-Violation in SO(10) Models with Family
  Symmetries   Several ideas for solving the problem of fermion mass hierarchy and mixing
and specific supersymmetric models that realize it are reviewed. In particular,
we discuss many models based on SO(10) in four dimensions combined with a
family symmetry to accommodate fermion mass hierarchy and mixing, including the
case of neutrinos. These models are compared and various tests that can be used
to distinguish these models are suggested. We also include a discussion of a
few SO(10) models in higher space-time dimensions.

17
The categories of this paper are: q-fin
22
The categories of this paper are: chao-dyn
28
The categories of this paper are: alg-geom
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
1
The categories of this paper are: cs
16
The categories of this paper are: stat
10
The categories of this paper are: q-bio
15
The categories of this paper are: nucl-ex
21
The categories of this paper are: adap-org
3
The categories of this paper are: physics
31
The categories of this paper are: ao-sci
12
The categories of this paper are: nucl-th
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph