Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Continuity of multivariate rational functions   If the denominator of a rational function of several variables is sum of even
powers and the numerator is a monomial, then we give a numerical criterion,
using the exponents involved in the expression of the rational function, to
decide if the limit at the origin exists or not.

33
The categories of this paper are: plasm-ph
37
The categories of this paper are: supr-con
3
The categories of this paper are: physics
12
The categories of this paper are: nucl-th
30
The categories of this paper are: q-alg
31
The categories of this paper are: ao-sci
29
The categories of this paper are: funct-an
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
25
The categories of this paper are: patt-sol
34
The categories of this paper are: chem-ph
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
17
The categories of this paper are: q-fin
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat