Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Finding Efficient Recursions for Risk Aggregation by Computer Algebra   We derive recursions for the probability distribution of random sums by
computer algebra. Unlike the well-known Panjer-type recursions, they are of
finite order and thus allow for computation in linear time. This efficiency is
bought by the assumption that the probability generating function of the claim
size be algebraic. The probability generating function of the claim number is
supposed to be from the rather general class of D-finite functions.

28
The categories of this paper are: alg-geom
21
The categories of this paper are: adap-org
26
The categories of this paper are: bayes-an
36
The categories of this paper are: cmp-lg
19
The categories of this paper are: eess
14
The categories of this paper are: math-ph
32
The categories of this paper are: atom-ph
35
The categories of this paper are: mtrl-th
10
The categories of this paper are: q-bio
34
The categories of this paper are: chem-ph
25
The categories of this paper are: patt-sol
3
The categories of this paper are: physics
33
The categories of this paper are: plasm-ph
0
The categories of this paper are: hep-ph
4
The categories of this paper are: cond-mat
22
The categories of this paper are: chao-dyn