Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Four-center Integral of a Dipolar Two-electron Potential Between s-type
  GTO's   We reduce two-electron 4-center products of Cartesian Gaussian Type Orbitals
with Boys' contraction to 2-center products of the form psi_alpha(r_i-A)
psi_beta(r_j-B), and compute the 6-dimensional integral over d^3r_i d^3r_j over
these with the effective potential V_{ij} = (r_i-r_j) . r_j / |r_i-r_j|^3 in
terms of Shavitt's confluent hypergeometric functions.

30
The categories of this paper are: q-alg
13
The categories of this paper are: quant-ph
2
The categories of this paper are: math
7
The categories of this paper are: hep-th
0
The categories of this paper are: hep-ph
29
The categories of this paper are: funct-an
23
The categories of this paper are: solv-int
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The categories of this paper are: chao-dyn
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The categories of this paper are: dg-ga
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The categories of this paper are: patt-sol
14
The categories of this paper are: math-ph
4
The categories of this paper are: cond-mat
11
The categories of this paper are: hep-lat
10
The categories of this paper are: q-bio
12
The categories of this paper are: nucl-th
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The categories of this paper are: stat