14.01.2026, 14:00 - 15:15
– Campus Golm, Building 9, Room 2.22 and via Zoom
Institutskolloquium
Getting to the chore of things
Christian Mercat (Claude Bernard University Lyon 1)
Chand Devchand (University of Potsdam)
It is well-known that gauge theories in four-dimensional space time are conformally invariant. However, for the field equations, as they are usually written, only the Lorentz invariance is manifest.
Over 85 years ago, Dirac proposed a conformally covariant formulation in which the four dimensional field strength is embedded in a 3-form field in five-dimensional projective space. In this talk, I will review Dirac's paper (Wave equations in conformal space. Ann. of Math. (2) 37 (1936), no. 2, 429–442, https://www.jstor.org/stable/1968455 ).
If you wish to attend the talks, please contact Sylvie Paycha paycha@math.uni-potsdam.de for the login details.