Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: The distributivity numbers of of P(om) /fin and its square   We show that in a model obtained by forcing with a countable support
iteration of length omega_2 of Mathias forcing h(2), the distributivity number
of r.o.(P(omega)/fin)^2, is omega_1 but h, the one of P(omega)/fin, is omega_2.

33
The categories of this paper are: plasm-ph
35
The categories of this paper are: mtrl-th
30
The categories of this paper are: q-alg
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The categories of this paper are: cmp-lg
37
The categories of this paper are: supr-con
9
The categories of this paper are: nlin
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
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The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
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The categories of this paper are: econ
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The categories of this paper are: eess
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex