Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Karp height of models of stable theories   A trichotomy theorem for countable, stable, unsuperstable theories is
offered. We develop the notion of a `regular ideal' of formulas and study types
that are minimal with respect to such an ideal.

33
The categories of this paper are: plasm-ph
27
The categories of this paper are: comp-gas
24
The categories of this paper are: dg-ga
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
21
The categories of this paper are: adap-org
5
The categories of this paper are: gr-qc
4
The categories of this paper are: cond-mat
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
26
The categories of this paper are: bayes-an
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
15
The categories of this paper are: nucl-ex