Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Large Neutrino Mixing from Small Quark and Lepton Mixings   We discuss the special class of models where nearly maximal neutrino mixing
is produced through the see-saw mechanism, starting from only nearly diagonal
matrices for charged leptons, Dirac neutrinos and Majorana right-handed
neutrinos.

9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
19
The categories of this paper are: eess
20
The categories of this paper are: acc-phys
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
13
The categories of this paper are: quant-ph
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
12
The categories of this paper are: nucl-th
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The categories of this paper are: q-fin
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The categories of this paper are: hep-th
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The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph