Umeno, Yukiko; Fan, Heng; Wadati, Miki Fermionic \(R\)-operator approach for the small-polaron model with open boundary condition. (English) Zbl 1079.82524 J. Phys. Soc. Japan 68, No. 12, 3826-3830 (1999). MSC: 82B20 37K15 37N20 PDFBibTeX XMLCite \textit{Y. Umeno} et al., J. Phys. Soc. Japan 68, No. 12, 3826--3830 (1999; Zbl 1079.82524) Full Text: DOI arXiv
Sakai, Kazumitsu; Shiroishi, Masahiro; Suzuki, Junji; Umeno, Yukiko Commuting quantum transfer matrix approach to intrinsic Fermion system: Correlation length of a spinless Fermion model. arXiv:cond-mat/9902296 Preprint, arXiv:cond-mat/9902296 [cond-mat.stat-mech] (1999). BibTeX Cite \textit{K. Sakai} et al., ``Commuting quantum transfer matrix approach to intrinsic Fermion system: Correlation length of a spinless Fermion model'', Preprint, arXiv:cond-mat/9902296 [cond-mat.stat-mech] (1999) Full Text: DOI arXiv
Umeno, Yukiko; Shiroishi, Masahiro; Wadati, Miki Fermionic \(R\)-operator for the fermion chain model. (English) Zbl 0943.82011 J. Phys. Soc. Japan 67, No. 6, 1930-1935 (1998). MSC: 82B23 81U40 37K15 PDFBibTeX XMLCite \textit{Y. Umeno} et al., J. Phys. Soc. Japan 67, No. 6, 1930--1935 (1998; Zbl 0943.82011) Full Text: DOI arXiv
Umeno, Yukiko; Shiroishi, Masahiro; Wadati, Miki Fermionic \(R\)-operator and integrability of the one-dimensional Hubbard model. (English) Zbl 0943.82004 J. Phys. Soc. Japan 67, No. 7, 2242-2254 (1998). MSC: 82B20 82B23 37K15 PDFBibTeX XMLCite \textit{Y. Umeno} et al., J. Phys. Soc. Japan 67, No. 7, 2242--2254 (1998; Zbl 0943.82004) Full Text: DOI arXiv
Nishino, Akinori; Umeno, Yukiko; Wadati, Miki Chiral nonlinear Schrödinger equation. (English) Zbl 0932.35190 Chaos Solitons Fractals 9, No. 7, 1063-1069 (1998). MSC: 35Q55 37K40 PDFBibTeX XMLCite \textit{A. Nishino} et al., Chaos Solitons Fractals 9, No. 7, 1063--1069 (1998; Zbl 0932.35190) Full Text: DOI