Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Equal-area method for scalar conservation laws   We study one-dimensional conservation law. We develop a simple numerical
method for computing the unique entropy admissible weak solution to the initial
problem. The method basis on the equal-area principle and gives the solution
for given time directly.

13
The categories of this paper are: quant-ph
37
The categories of this paper are: supr-con
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
12
The categories of this paper are: nucl-th
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
17
The categories of this paper are: q-fin
29
The categories of this paper are: funct-an
11
The categories of this paper are: hep-lat
25
The categories of this paper are: patt-sol
24
The categories of this paper are: dg-ga
7
The categories of this paper are: hep-th