this PDF file - The Electronic Journal of Combinatorics
... consider forward α-switchings only up to cyclic rotation of indices; that is, we identify the 2k different α-switchings obtained by cyclically rotating all sequences vi , ui , and wi . To go the opposite direction, suppose G contains oriented paths ui vi wi for 0 6 i 6 k −1 such that vi 6∼ vi+1 and ...
... consider forward α-switchings only up to cyclic rotation of indices; that is, we identify the 2k different α-switchings obtained by cyclically rotating all sequences vi , ui , and wi . To go the opposite direction, suppose G contains oriented paths ui vi wi for 0 6 i 6 k −1 such that vi 6∼ vi+1 and ...
