“…In the recent years, substantial efforts are made in establishing broad interplay between C * -algebras and non-invertible dynamical systems, actions of semigroups, equivalence relations, (semi-)groupoids, correspondences (see for example works by Exel [21,22], Exel and Vershik [23] Arzumanian and Vershik [4,5], Deaconu [13], Renault [39][40][41], Adji, Laca, Nielsen and Raeburn [1], an Huef and Raeburn [2], Bratteli, Jorgensen and Evans [6], Bratteli and Jorgensen [7,8], Dutkay and Jorgensen [14][15][16][17], Jorgensen [25], Dai and Larson [11], Kajiwara and Watatani [26], Kawamura [29], Watatani [48], Ostrovskyȋ and Samoȋlenko [36], Cuntz and Krieger [10], Matsumoto [35], Eilers [19], Carlsen and Silvestrov [9], and references therein).…”