DATE: TODAY, Thursday, 16 June 2022
TIME: Western Hemisphere Edition
          15:00 GMT
          11:00 Toronto
          16:00 UK
          17:00 Central Europe
          23:00 Hong Kong

Zoom Join Link: https://unige.zoom.us/j/63855510079?pwd=amF1NithcUtDcVFDMHY5Y3IrMGZLUT09
Meeting ID: 634 0579 4681
Passcode: 910094



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Christian Blohmann (Max Planck)



The homotopy momentum map of general relativity



In general relativity, Noether's theorem does not give rise to a hamiltonian momentum map, which is a long-standing,  fundamental, and annoying problem. Working in the setting of multisymplectic geometry, I will explain that there is a natural homotopy momentum map of general relativity, i.e. a morphism of L-infinity algebras that extends the map from spacetime vector fields to their conserved Noether currents.


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修改:vinbo FROM 211.161.249.*
FROM 211.161.249.*