Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On the classification of lattices over $\Q(\sqrt{-3})$, which are even
  unimodular $\Z$-lattices   We give a classification of the lattices of rank r=4, r=8 and r=12 over
\Q(\sqrt{-3}), which are even and unimodular \Z-lattices. Using this
classification we construct the associated theta series, which are Hermitian
modular forms, and compute the filtration of cusp forms.

6
The categories of this paper are: astro-ph
4
The categories of this paper are: cond-mat
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
5
The categories of this paper are: gr-qc
22
The categories of this paper are: chao-dyn
33
The categories of this paper are: plasm-ph
36
The categories of this paper are: cmp-lg
13
The categories of this paper are: quant-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph