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Documents  Matsuo, Shinichiroh | enregistrements trouvés : 1

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Research talks;Geometry;Mathematical Physics

We propose a yet another definition of KR-groups, which combines those of Atiyah and Karoubi and gives a simple proof of the Bott periodicity. Using the new definition, we can formulate the bulk-edge correspondence for free fermion systems as the functoriality of the Gysin map.
This is joint work with M. Furuta, S. Hayashi, M. Kotani, Y. Kubota, and K. Sato.

19K35 ; 53C80 ; 81V70

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