Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Classification of integrable quadratic Hamiltonians on e(3)   Linear Poisson brackets on e(3) typical of rigid body dynamics are
considered. All quadratic Hamiltonians of Kowalevski type having additional
first integral of fourth degree are found. Quantum analogs of these
Hamiltonians are listed.

24
The categories of this paper are: dg-ga
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
30
The categories of this paper are: q-alg
32
The categories of this paper are: atom-ph
6
The categories of this paper are: astro-ph
35
The categories of this paper are: mtrl-th
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
21
The categories of this paper are: adap-org
7
The categories of this paper are: hep-th
15
The categories of this paper are: nucl-ex
25
The categories of this paper are: patt-sol
33
The categories of this paper are: plasm-ph
23
The categories of this paper are: solv-int
3
The categories of this paper are: physics