Instruct: Identify the main and secondary category of Arxiv papers based on the titles and abstracts
Query: Dynamical susceptibilities in strong coupling approach: General scheme
  and Falikov-Kimball model   A general scheme to calculate dynamical susceptibilities of strongly
correlated electron systems within the dynamical mean field theory is
developed. Approach is based on an expansion over electron hopping around the
atomic limit (within the diagrammatic technique for site operators: projection
and Hubbard ones) in infinite dimensions. As an example, the Falicov-Kimball
and simplified pseudospin-electron models are considered for which an
analytical expressions for dynamical susceptibilities are obtained.

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The categories of this paper are: mtrl-th
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The categories of this paper are: dg-ga
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The categories of this paper are: chem-ph
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The categories of this paper are: gr-qc
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The categories of this paper are: acc-phys
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The categories of this paper are: hep-lat
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The categories of this paper are: atom-ph
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The categories of this paper are: econ
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The categories of this paper are: alg-geom
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The categories of this paper are: math
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The categories of this paper are: physics
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The categories of this paper are: bayes-an
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The categories of this paper are: cmp-lg
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The categories of this paper are: astro-ph
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The categories of this paper are: ao-sci
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The categories of this paper are: hep-ph