Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Hedetniemi's conjecture for uncountable graphs   It is proved that in Godel's constructible universe, for every infinite
successor cardinal k, there exist graphs G and H of size and chromatic number
k, for which the tensor product graph (G x H) is countably chromatic.

24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
30
The categories of this paper are: q-alg
4
The categories of this paper are: cond-mat
17
The categories of this paper are: q-fin
28
The categories of this paper are: alg-geom
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
36
The categories of this paper are: cmp-lg
10
The categories of this paper are: q-bio
29
The categories of this paper are: funct-an
27
The categories of this paper are: comp-gas
35
The categories of this paper are: mtrl-th