Markus J. Pflaum (CU Boulder) Whightman functions, the Borchers–Uhlmann algebra and GNS type reconstruction of quantum fields
Oct. 12, 2022 4:40pm (MATH 3…
Grad Student Seminar
Juan Moreno (CU Boulder)
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Homotopy groups are important invariants of both spaces and spectra, but they're not everything. In this talk, I'll introduce Postnikov invariants which contain more information about the space or spectrum. Then we'll determine some Postnikov invariants arising from the physics of topological phases.