Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: From Short-Range to Contact Interactions in the 1d Bose Gas   For a system of $N$ bosons in one space dimension with two-body
$\delta$-interactions the Hamiltonian can be defined in terms of the usual
closed semi-bounded quadratic form. We approximate this Hamiltonian in norm
resolvent sense by Schr\"odinger operators with rescaled two-body potentials,
and we estimate the rate of this convergence.

25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
32
The categories of this paper are: atom-ph
31
The categories of this paper are: ao-sci
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
5
The categories of this paper are: gr-qc
0
The categories of this paper are: hep-ph
33
The categories of this paper are: plasm-ph
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th
11
The categories of this paper are: hep-lat