99 citations · 139 across the 9 of their papers we have counts for
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cond-mat.str-el2004★ 2 cited
4-pole analysis of the two-dimensional Hubbard model
Satoru Odashima, Adolfo Avella, Ferdinando Mancini
The electronic states of the two-dimensional Hubbard model are investigated by means of a 4-pole approximation within the Composite Operator Method. In addition to the conventional…
cond-mat.str-el2004★ 16 cited
The Hubbard model with intersite interaction within the Composite Operator Method
Adolfo Avella, Ferdinando Mancini
We study the one- and two- dimensional extended Hubbard model by means of the Composite Operator Method within the 2-pole approximation. The fermionic propagator is computed fully…
cond-mat.str-el2004★ 4 cited
Effects of two-site composite excitations in the Hubbard model
A. Avella, F. Mancini, S. Odashima
The electronic states of the Hubbard model are investigated by use of the Composite Operator Method. In addition to the Hubbard operators, two other operators related with two-site…