Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dispersion relations of strained as well as complex Lieb lattices   We investigate the dispersion relations of strained as well as complex Lieb
lattices systematically based on the tight-binding method when the
nearest-neighbor approximation is adopted. We find that edge states will no
appear for strained Lieb lattices and $\mathcal{PT}$-symmetry Lieb lattice
cannot be obtained.

37
The categories of this paper are: supr-con
17
The categories of this paper are: q-fin
5
The categories of this paper are: gr-qc
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
22
The categories of this paper are: chao-dyn
8
The categories of this paper are: hep-ex
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
7
The categories of this paper are: hep-th
29
The categories of this paper are: funct-an
30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
12
The categories of this paper are: nucl-th