Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Three strongly hyperbolic metrics on ptolemy spaces   Recently, strongly hyperbolic space as certain analytic enhancements of
Gromov hyperbolic space was introduced by B. Nica and J. Spakula. In this note,
we prove that the log-metric log(1+d) on a Ptolemy space (X,d) is a strongly
hyperbolic metric. Using our result, we construct three metrics on a Ptolemy
metric space and prove they are strongly hyperbolic.

23
The categories of this paper are: solv-int
0
The categories of this paper are: hep-ph
14
The categories of this paper are: math-ph
8
The categories of this paper are: hep-ex
17
The categories of this paper are: q-fin
7
The categories of this paper are: hep-th
33
The categories of this paper are: plasm-ph
6
The categories of this paper are: astro-ph
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
34
The categories of this paper are: chem-ph
26
The categories of this paper are: bayes-an
37
The categories of this paper are: supr-con
32
The categories of this paper are: atom-ph
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas