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math.OA2024
On Toeplitz algebras of product systems
Elias G. Katsoulis, Marcelo Laca, Camila F. Sehnem
In the setting of product systems over group-embeddable monoids, we consider nuclearity of the associated Toeplitz C*-algebra in relation to nuclearity of the coefficient algebra.…
math.OA2024
Crystallization of C*-algebras
Marcelo Laca, Sergey Neshveyev, Makoto Yamashita
Given a C-algebra with an almost periodic time evolution , we define a new C-algebra , which we call the crystal of , that represents the zero temperatur…