Moskalenko, V.A.; Dohotaru, L.A.; Digor, D.F.; Cebotari, I.D.
(Физика низких температур, 2012)
Diagrammatic analysis for normal state of Hubbard model proposed in our previous paper is generalized and
used to investigate superconducting state of this model. We use the notion of charge quantum number to describe
the ...