Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Sums of squares of binomial coefficients, with applications to
  Picard-Fuchs equations   For a fixed integer N, and fixed numbers b_1,...,b_N, we consider sequences,
the nth term (a_n) of which is the sum of the squares of the terms in the
expansion of (b_1 + ... + b_N)^n. In the case all b_i=1, we give a formula for
a recurrence relation for the a_n. Otherwise we give an algorithm for finding a
recurrence relation. As an application, we give the Picard-Fuchs equations for
certain families of elliptic curves.

34
The categories of this paper are: chem-ph
3
The categories of this paper are: physics
37
The categories of this paper are: supr-con
14
The categories of this paper are: math-ph
23
The categories of this paper are: solv-int
11
The categories of this paper are: hep-lat
7
The categories of this paper are: hep-th
21
The categories of this paper are: adap-org
16
The categories of this paper are: stat
1
The categories of this paper are: cs
12
The categories of this paper are: nucl-th
17
The categories of this paper are: q-fin
8
The categories of this paper are: hep-ex
28
The categories of this paper are: alg-geom
24
The categories of this paper are: dg-ga
6
The categories of this paper are: astro-ph