Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Isometric immersions into products of many space forms: an introductory
  study   This article begins the theory of submanifolds into products of 2 or more
space forms. The tensors $\mathbf{R}$, $\mathbf{S}$ and $\mathbf{T}$ defined by
Lira, Tojeiro and Vit\'orio at \cite{LTV} and the Bonnet theorem proved by them
are generalized for the product of many space forms. Besides, some examples
given by Mendon\c{c}a and Tojeiro at \cite{MT} and the reduction of codimension
theorem proved by them are also generalized.

33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
13
The categories of this paper are: quant-ph
15
The categories of this paper are: nucl-ex
16
The categories of this paper are: stat
21
The categories of this paper are: adap-org
11
The categories of this paper are: hep-lat
28
The categories of this paper are: alg-geom
18
The categories of this paper are: econ
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
1
The categories of this paper are: cs
8
The categories of this paper are: hep-ex
25
The categories of this paper are: patt-sol
0
The categories of this paper are: hep-ph
34
The categories of this paper are: chem-ph