Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Representation of lattice frames   The aim of this note is to characterize those doubly ordered frames $\langle
X, \leq_1, \leq_2 \rangle$ which are embeddable into the canonical frame of its
Urquhart complex algebra.

14
The categories of this paper are: math-ph
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
33
The categories of this paper are: plasm-ph
5
The categories of this paper are: gr-qc
35
The categories of this paper are: mtrl-th
21
The categories of this paper are: adap-org
27
The categories of this paper are: comp-gas
13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
10
The categories of this paper are: q-bio
22
The categories of this paper are: chao-dyn
19
The categories of this paper are: eess
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th