89 citations · 236 across the 13 of their papers we have counts for
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cond-mat.str-el1999★ 24 cited
Dynamical susceptibilities in strong coupling approach
A. M. Shvaika
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 expans…
cond-mat.str-el1999★ 14 cited
Strong-coupling approach for strongly correlated electron systems
A. M. Shvaika
A perturbation theory scheme in terms of electron hopping, which is based on the Wick theorem for Hubbard operators, is developed. Diagrammatic series contain single-site vertices…