TY - JOUR AU - Berndt Brenken TI - Ordered $*$-Semigroups and a $C^*$-Correspondence for a Partial Isometry JO - Symmetry, integrability and geometry: methods and applications PY - 2014 VL - 10 UR - http://geodesic.mathdoc.fr/item/SIGMA_2014_10_a54/ LA - en ID - SIGMA_2014_10_a54 ER -