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@article{faucris.245473421,
abstract = {Strong invariants of even-dimensional topological insulators of independent Fermions are expressed in terms of an invertible operator on the Hilbert space over the boundary. It is given by the Cayley transform of the boundary restriction of the half-space resolvent. This dimensional reduction is routed in new representation for the K-theoretic exponential map. It allows to express the invariants via the reflection matrix at the Fermi energy, for the scattering set-up of a wire coupled to the half-space insulator.},
author = {Schulz-Baldes, Hermann and Toniolo, Daniele},
doi = {10.1007/s00220-020-03886-y},
faupublication = {yes},
journal = {Communications in Mathematical Physics},
note = {CRIS-Team Scopus Importer:2020-11-20},
pages = {119-142},
peerreviewed = {Yes},
title = {{Dimensional} {Reduction} and {Scattering} {Formulation} for {Even} {Topological} {Invariants}},
volume = {381},
year = {2021}
}