@article{oai:nagoya.repo.nii.ac.jp:00008317, author = {Kuniba, Atsuo and Nakanishi, Tomoki}, journal = {Progress in Mathematical Physics}, month = {}, note = {The Uq(ˆsl(2)) Bethe equation is studied at q = 0. A linear congruence equation is proposed related to the string solutions. The number of its off-diagonal solutions is expressed in terms of an explicit combinatorial formula and coincides with the weight multiplicities of the quantum space.}, pages = {185--216}, title = {Bethe Equation at q=0, Möbius Inversion Formula, and Weight Multiplicities: I. sl(2) case}, volume = {191}, year = {2000} }