Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On Riemann curvature of singular square metrics   Square metrics is an important class of Finsler metrics. Recently, we
introduced a special class of non-regular Finsler metrics called singular
square metrics. The main purpose of this paper is to provide a necessary and
sufficient condition for singular square metrics to be of constant Ricci or
flag curvature when dimension $n\geq3$.

32
The categories of this paper are: atom-ph
23
The categories of this paper are: solv-int
5
The categories of this paper are: gr-qc
14
The categories of this paper are: math-ph
1
The categories of this paper are: cs
33
The categories of this paper are: plasm-ph
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio
3
The categories of this paper are: physics
27
The categories of this paper are: comp-gas
9
The categories of this paper are: nlin
17
The categories of this paper are: q-fin
12
The categories of this paper are: nucl-th
34
The categories of this paper are: chem-ph
30
The categories of this paper are: q-alg
16
The categories of this paper are: stat