Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Strongly regular multi-level solutions of singularly perturbed linear
  partial differential equations   We study the asymptotic behavior of the solutions related to a family of
singularly perturbed partial differential equations in the complex domain. The
analytic solutions are asymptotically represented by a formal power series in
the perturbation parameter. The geometry of the problem and the nature of the
elements involved in it give rise to different asymptotic levels related to the
so-called strongly regular sequences. The result leans on a novel version of a
multi-level Ramis-Sibuya theorem.

21
The categories of this paper are: adap-org
6
The categories of this paper are: astro-ph
9
The categories of this paper are: nlin
4
The categories of this paper are: cond-mat
18
The categories of this paper are: econ
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
16
The categories of this paper are: stat
32
The categories of this paper are: atom-ph
3
The categories of this paper are: physics
35
The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
27
The categories of this paper are: comp-gas
7
The categories of this paper are: hep-th
22
The categories of this paper are: chao-dyn