Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A note on sub-orthogonal lattices   It is shown that, given any $k$-dimensional lattice $\Lambda$, there is a
lattice sequence $\Lambda_w$, $w\in \mathbb Z$, with sub-orthogonal lattice
$\Lambda_o \subset \Lambda$, converging to $\Lambda$ (unless equivalence), also
we discuss the conditions for faster convergence.

34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
17
The categories of this paper are: q-fin
16
The categories of this paper are: stat
11
The categories of this paper are: hep-lat
37
The categories of this paper are: supr-con
23
The categories of this paper are: solv-int
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The categories of this paper are: q-alg
25
The categories of this paper are: patt-sol
8
The categories of this paper are: hep-ex
13
The categories of this paper are: quant-ph
36
The categories of this paper are: cmp-lg
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn
10
The categories of this paper are: q-bio
35
The categories of this paper are: mtrl-th