Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Topological Aspects of Matters and Langlands Program   In the framework of Langlands program, we offer a unified description of the
integer and fractional quantum Hall effect as well as the fractal nature of
energy spectra of 2d Bloch electrons. We categorify topological invariants on
the Brillouin Zone and address the several dualities in a coherent manner where
analogs of the classical Fourier transform provide an essential crux of the
matter. Based on the Langlands philosophy, we elucidate the duality of
topological computation and that of Ising models in the same context.

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
31
The categories of this paper are: ao-sci
24
The categories of this paper are: dg-ga
22
The categories of this paper are: chao-dyn
12
The categories of this paper are: nucl-th
9
The categories of this paper are: nlin
18
The categories of this paper are: econ
35
The categories of this paper are: mtrl-th
32
The categories of this paper are: atom-ph
28
The categories of this paper are: alg-geom
19
The categories of this paper are: eess
0
The categories of this paper are: hep-ph
3
The categories of this paper are: physics
8
The categories of this paper are: hep-ex