Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Application of the inverse Hamiltonian method to Hartree-Fock-Bogoliubov
  calculations   We solve the Hartree-Fock-Bogoliubov (HFB) equations for a spherical mean
field and a pairing potential with the inverse Hamiltonian method, which we
have developed for the solution of the Dirac equation. This method is based on
the variational principle for the inverse Hamiltonian, and is applicable to
Hamiltonians that are bound neither from above nor below. We demonstrate that
the method works well not only for the Dirac but also for the HFB equations.

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The categories of this paper are: supr-con
19
The categories of this paper are: eess
6
The categories of this paper are: astro-ph
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The categories of this paper are: acc-phys
2
The categories of this paper are: math
22
The categories of this paper are: chao-dyn
4
The categories of this paper are: cond-mat
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The categories of this paper are: dg-ga
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The categories of this paper are: nucl-ex
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The categories of this paper are: quant-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: q-bio
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The categories of this paper are: bayes-an
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The categories of this paper are: mtrl-th
0
The categories of this paper are: hep-ph
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The categories of this paper are: plasm-ph