Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Time irregularity of generalized Ornstein--Uhlenbeck processes   The paper is concerned with the properties of solutions to linear evolution
equation perturbed by cylindrical L\'evy processes. It turns out that
solutions, under rather weak requirements, do not have c\`adl\`ag modification.
Some natural open questions are also stated.

13
The categories of this paper are: quant-ph
31
The categories of this paper are: ao-sci
30
The categories of this paper are: q-alg
1
The categories of this paper are: cs
15
The categories of this paper are: nucl-ex
9
The categories of this paper are: nlin
14
The categories of this paper are: math-ph
19
The categories of this paper are: eess
26
The categories of this paper are: bayes-an
34
The categories of this paper are: chem-ph
18
The categories of this paper are: econ
6
The categories of this paper are: astro-ph
21
The categories of this paper are: adap-org
29
The categories of this paper are: funct-an
7
The categories of this paper are: hep-th
10
The categories of this paper are: q-bio