Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Existence and non-existence of frequently hypercyclic subspaces for
  weighted shifts   We study the existence and the non-existence of frequently hypercyclic
subspaces in Banach spaces. In particular, we give an example of a weighted
shift on lp possessing a frequently hypercyclic subspace and an example of a
frequently hypercyclic weighted shift on lp possessing a hypercyclic subspace
but no frequently hypercyclic subspace. The latter example allows us to answer
positively Problem 1 posed by Bonilla and Grosse-Erdmann in [Monatsh. Math. 168
(2012)].

16
The categories of this paper are: stat
0
The categories of this paper are: hep-ph
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
12
The categories of this paper are: nucl-th
37
The categories of this paper are: supr-con
34
The categories of this paper are: chem-ph
24
The categories of this paper are: dg-ga
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
17
The categories of this paper are: q-fin
26
The categories of this paper are: bayes-an
1
The categories of this paper are: cs
4
The categories of this paper are: cond-mat
10
The categories of this paper are: q-bio
8
The categories of this paper are: hep-ex