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In crystalline insulating quantum systems the dynamics of electrons is governed by a Schrödinger operator which is periodic with respect to a Bravais lattice $\Gamma\cong \mathbb{Z}^d$ and whose ...

We say that a C*-algebra $A$ is K-exact, if for any exact sequence of C*-algebras $0\rightarrow I\rightarrow B\rightarrow B/I\rightarrow0$, the sequences $K_i(I\otimes_{min}A)\rightarrow K_i(B\...