Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finite-dimensional pointed Hopf algebras over finite simple groups of
  Lie type I. Non-semisimple classes in PSL(n,q)   We show that Nichols algebras of most simple Yetter-Drinfeld modules over the
projective special linear group over a finite field, corresponding to
non-semisimple orbits, have infinite dimension. We spell out a new criterium to
show that a rack collapses.

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The categories of this paper are: hep-th
34
The categories of this paper are: chem-ph
17
The categories of this paper are: q-fin
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The categories of this paper are: nlin
30
The categories of this paper are: q-alg
10
The categories of this paper are: q-bio
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
28
The categories of this paper are: alg-geom
25
The categories of this paper are: patt-sol
29
The categories of this paper are: funct-an
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The categories of this paper are: physics
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The categories of this paper are: hep-ph
1
The categories of this paper are: cs
35
The categories of this paper are: mtrl-th