Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Shift equivalence in the generalized factor order   We provide a geometric condition that guarantees strong Wilf equivalence in
the generalized factor order. This provides a powerful tool for proving
specific and general Wilf equivalence results, and several such examples are
given.

13
The categories of this paper are: quant-ph
4
The categories of this paper are: cond-mat
5
The categories of this paper are: gr-qc
36
The categories of this paper are: cmp-lg
27
The categories of this paper are: comp-gas
0
The categories of this paper are: hep-ph
16
The categories of this paper are: stat
20
The categories of this paper are: acc-phys
12
The categories of this paper are: nucl-th
32
The categories of this paper are: atom-ph
22
The categories of this paper are: chao-dyn
6
The categories of this paper are: astro-ph
3
The categories of this paper are: physics
14
The categories of this paper are: math-ph
28
The categories of this paper are: alg-geom
7
The categories of this paper are: hep-th