Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: A geometric study of Wasserstein spaces: an addendum on the boundary   We extend the geometric study of the Wasserstein space W(X) of a simply
connected, negatively curved metric space X by investigating which pairs of
boundary points can be linked by a geodesic, when X is a tree.

24
The categories of this paper are: dg-ga
18
The categories of this paper are: econ
11
The categories of this paper are: hep-lat
17
The categories of this paper are: q-fin
13
The categories of this paper are: quant-ph
1
The categories of this paper are: cs
21
The categories of this paper are: adap-org
34
The categories of this paper are: chem-ph
35
The categories of this paper are: mtrl-th
14
The categories of this paper are: math-ph
37
The categories of this paper are: supr-con
19
The categories of this paper are: eess
12
The categories of this paper are: nucl-th
20
The categories of this paper are: acc-phys
5
The categories of this paper are: gr-qc
15
The categories of this paper are: nucl-ex