Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamics of weighted shifts on directed trees   We study the dynamical behaviour of weighted shifts defined on sequence
spaces of a directed tree. In particular, we characterize their boundedness as
well as when they are hypercyclic, weakly mixing and mixing.

4
The categories of this paper are: cond-mat
7
The categories of this paper are: hep-th
28
The categories of this paper are: alg-geom
16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
20
The categories of this paper are: acc-phys
30
The categories of this paper are: q-alg
15
The categories of this paper are: nucl-ex
34
The categories of this paper are: chem-ph
19
The categories of this paper are: eess
31
The categories of this paper are: ao-sci
27
The categories of this paper are: comp-gas
21
The categories of this paper are: adap-org
9
The categories of this paper are: nlin
25
The categories of this paper are: patt-sol
10
The categories of this paper are: q-bio