%0 Journal Article %A Yangdong Zheng %T Exact spin states and analytic formulas for nonequilibrium spin transport in a three-site one-dimensional system with interacting electrons %J Teoretičeskaâ i matematičeskaâ fizika %D 2021 %P 515-542 %V 209 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/TMF_2021_209_3_a7/ %G ru %F TMF_2021_209_3_a7