Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A Milnor-Wood inequality for complex hyperbolic lattices in quaternionic
  space   We prove a Milnor-Wood inequality for representations of the fundamental
group of a compact complex hyperbolic manifold in the group of isometries of
quaternionic hyperbolic space. Of special interest is the case of equality, and
its application to rigidity. We show that equality can only be achieved for
totally geodesic representations, thereby establishing a global rigidity
theorem for totally geodesic representations.

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The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
5
The categories of this paper are: gr-qc
10
The categories of this paper are: q-bio
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
1
The categories of this paper are: cs
0
The categories of this paper are: hep-ph
7
The categories of this paper are: hep-th
31
The categories of this paper are: ao-sci
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
26
The categories of this paper are: bayes-an