Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Tutorial on quasi-sparse eigenvector diagonalization   We review several topics related to the diagonalization of quantum field
Hamiltonians using the quasi-sparse eigenvector (QSE) method.

22
The categories of this paper are: chao-dyn
34
The categories of this paper are: chem-ph
13
The categories of this paper are: quant-ph
9
The categories of this paper are: nlin
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
20
The categories of this paper are: acc-phys
15
The categories of this paper are: nucl-ex
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
35
The categories of this paper are: mtrl-th
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
29
The categories of this paper are: funct-an
3
The categories of this paper are: physics