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cond-mat.str-el2008★ 2 cited
Shifted COCG method and its application to double orbital extended Hubbard model
Susumu Yamamoto, Tomohiro Sogabe, Takeo Hoshi +2
We explains the shifted COCG method which can solve a series of the linear equations generated by numbers of scaler shifts, without time consuming matrix-vector operations, except…
cond-mat.str-el2002
Generalization of the iterative perturbation theory and metal-insulator transition in multi-orbital Hubbard bands
Takeo Fujiwara, Susumu Yamamoto, Yasushi Ishii
The iterative perturbation theory of the dynamical mean field theory is generalized to arbitrary electron occupation in case of multi-orbital Hubbard bands. We present numerical re…