Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Density of Zariski density for surface groups   We show that a surface group contained in a reductive real algebraic group
can be deformed to become Zariski dense, unless its Zariski closure acts
transitively on a Hermitian symmetric space of tube type. This is a kind of
converse to a rigidity result of Burger, Iozzi and Wienhard.

6
The categories of this paper are: astro-ph
8
The categories of this paper are: hep-ex
31
The categories of this paper are: ao-sci
33
The categories of this paper are: plasm-ph
29
The categories of this paper are: funct-an
25
The categories of this paper are: patt-sol
37
The categories of this paper are: supr-con
22
The categories of this paper are: chao-dyn
23
The categories of this paper are: solv-int
20
The categories of this paper are: acc-phys
3
The categories of this paper are: physics
11
The categories of this paper are: hep-lat
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
24
The categories of this paper are: dg-ga
4
The categories of this paper are: cond-mat