Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Solving the Maxwell equations by the Chebyshev method: A one-step
  finite-difference time-domain algorithm   We present a one-step algorithm that solves the Maxwell equations for systems
with spatially varying permittivity and permeability by the Chebyshev method.
We demonstrate that this algorithm may be orders of magnitude more efficient
than current finite-difference time-domain algorithms.

16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
35
The categories of this paper are: mtrl-th
34
The categories of this paper are: chem-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
29
The categories of this paper are: funct-an
2
The categories of this paper are: math
37
The categories of this paper are: supr-con
26
The categories of this paper are: bayes-an
5
The categories of this paper are: gr-qc
27
The categories of this paper are: comp-gas
18
The categories of this paper are: econ
17
The categories of this paper are: q-fin