Abstract:
We consider inductive sequences of Toeplitz–Cuntz algebras. The connecting homomorphisms of such a sequence are defined by a finite set of sequences of positive integers. We prove that the inductive limit of such a sequence of Toeplitz–Cuntz algebras is isomorphic to the reduced semigroup C∗-algebra constructed for the unitalization of the free product of a finite family of semigroups of positive rational numbers. We show that the limit of the inductive sequence of Toeplitz–Cuntz algebras defined by a finite set of sequences of positive integers is a simple C∗-algebra.
This work was performed in the framework of the development program of the Volga Region Scientific–Educational Centre of Mathematics (contract no. 075-02-2020-1478).
Citation:
S. A. Grigoryan, R. N. Gumerov, E. V. Lipacheva, “Limits of Inductive Sequences of Toeplitz–Cuntz Algebras”, Mathematics of Quantum Technologies, Collected papers, Trudy Mat. Inst. Steklova, 313, Steklov Math. Inst., Moscow, 2021, 67–77; Proc. Steklov Inst. Math., 313 (2021), 60–69
This publication is cited in the following 6 articles:
R.N. Gumerov, E.V. Lipacheva, “Automorphisms of the limits for the direct sequences of the Toeplitz-Cuntz algebras”, Journal of Mathematical Analysis and Applications, 533:2 (2024), 127991
S. A. Grigoryan, T. A. Grigoryan, “Semigroup C∗-algebras generated by a free product of abelian semigroups”, jour, 2:3 (2024), 29
Ufa Math. J., 16:3 (2024), 113–124
S. A. Grigoryan, A. Sh. Sharafutdinov, “Graduirovka polugruppovoi $C^\ast$-algebry po lokalnoi gruppe”, Izv. vuzov. Matem., 2023, no. 7, 85–90
S. A. Grigoryan, A. Sh. Sharafutdinov, “Grading of a Semigroup C*-Algebra by a Local Group”, Russ Math., 67:7 (2023), 72
R. N. Gumerov, “Nakryvayuschie gruppy i ikh prilozheniya: obzor”, Uchen. zap. Kazan. un-ta. Ser. Fiz.-matem. nauki, 164, no. 1, Izd-vo Kazanskogo un-ta, Kazan, 2022, 5–42