Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Lineare Rekurrenzen, Potenzreihen und ihre erzeugenden Funktionen   Diese kurze Einfuehrung in Theorie und Berechnung linearer Rekurrenzen
versucht, eine Luecke in der Literatur zu fuellen. Zu diesem Zweck sind viele
ausfuehrliche Beispiele angegeben.
  This short introduction to theory and usage of linear recurrences tries to
fill a gap in the literature by giving many extensive examples.

12
The categories of this paper are: nucl-th
10
The categories of this paper are: q-bio
4
The categories of this paper are: cond-mat
25
The categories of this paper are: patt-sol
11
The categories of this paper are: hep-lat
33
The categories of this paper are: plasm-ph
13
The categories of this paper are: quant-ph
5
The categories of this paper are: gr-qc
6
The categories of this paper are: astro-ph
7
The categories of this paper are: hep-th
3
The categories of this paper are: physics
20
The categories of this paper are: acc-phys
23
The categories of this paper are: solv-int
28
The categories of this paper are: alg-geom
8
The categories of this paper are: hep-ex
21
The categories of this paper are: adap-org