Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On some enumerative aspects of generalized associahedra   We prove a conjecture of F. Chapoton relating certain enumerative invariants
of (a) the cluster complex associated by S. Fomin and A. Zelevinsky to a finite
root system and (b) the lattice of noncrossing partitions associated to the
corresponding finite real reflection group.

1
The categories of this paper are: cs
7
The categories of this paper are: hep-th
8
The categories of this paper are: hep-ex
6
The categories of this paper are: astro-ph
34
The categories of this paper are: chem-ph
14
The categories of this paper are: math-ph
24
The categories of this paper are: dg-ga
36
The categories of this paper are: cmp-lg
5
The categories of this paper are: gr-qc
23
The categories of this paper are: solv-int
31
The categories of this paper are: ao-sci
20
The categories of this paper are: acc-phys
22
The categories of this paper are: chao-dyn
32
The categories of this paper are: atom-ph
30
The categories of this paper are: q-alg
18
The categories of this paper are: econ