The embedding structure and the shift operator of the U(1) lattice current algebra
arXiv:hep-th/9503107 · doi:10.1007/BF00400135
Abstract
The structure of block-spin embeddings of the U(1) lattice current algebra is described. For an odd number of lattice sites, the inner realizations of the shift automorphism areclassified. We present a particular inner shift operator which admits a factorization involving quantum dilogarithms analogous to the results of Faddeev and Volkov.
14 pages, Plain TeX; typos and a terminological mishap corrected; version to appear in Lett.Math.Phys