Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: On stability of generalised systems of difference equation with
  non-consistent initial conditions   For given non-consistent initial conditions, we study the stability of a
class of generalised linear systems of difference equations with constant
coefficients and taking into account that the leading coefficient can be a
singular matrix. We focus on the optimal solutions of the system and derive
easily testable conditions for stability.

25
The categories of this paper are: patt-sol
27
The categories of this paper are: comp-gas
15
The categories of this paper are: nucl-ex
0
The categories of this paper are: hep-ph
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
23
The categories of this paper are: solv-int
21
The categories of this paper are: adap-org
30
The categories of this paper are: q-alg
8
The categories of this paper are: hep-ex
29
The categories of this paper are: funct-an
10
The categories of this paper are: q-bio
1
The categories of this paper are: cs
20
The categories of this paper are: acc-phys
35
The categories of this paper are: mtrl-th
9
The categories of this paper are: nlin