AIMR Math Group Seminar #14


Date : March 15th (Thu.) 11:00-12:00

Place:4C, AIMR Main Bldg., Katahira campus, Tohoku University

SpeakerProf. Jean Bellissard

Title: Periodic aproximations to aperioid Hamiltonians



The topics will be motivated through the various attempts performed in the last 30 years to compute the energy spectrum of electrons in an aperiodic medium, such as quasicrystals. Then results obtained in 2016 on continuous fields of self-adjoint operators will be presented. Results about continuous fields of C*-algebras and groupoids obtained in the past and more recently, will be described. Then recents results about the specific case for one-dimensional aperiodic media will be given. A short description of the next steps, being under writing, will be provided. This work is a collaboration with Siegfried Beckus, Giuseppe De Nittis and Horia Cornean.




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