Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Rigidity theorems for glued spaces being suspensions, cones and joins in
  Alexandrov geometry with curvature bounded below   In the paper, we give rigidity theorems when the glued space of two
Alexandrov spapces with curvature bounded below is a suspension, cone or join.
And we list some basic properties of joins in Appendix.

1
The categories of this paper are: cs
30
The categories of this paper are: q-alg
14
The categories of this paper are: math-ph
27
The categories of this paper are: comp-gas
16
The categories of this paper are: stat
17
The categories of this paper are: q-fin
10
The categories of this paper are: q-bio
21
The categories of this paper are: adap-org
13
The categories of this paper are: quant-ph
20
The categories of this paper are: acc-phys
18
The categories of this paper are: econ
8
The categories of this paper are: hep-ex
19
The categories of this paper are: eess
25
The categories of this paper are: patt-sol
31
The categories of this paper are: ao-sci
5
The categories of this paper are: gr-qc