COOKIES: By using this website you agree that we can place Google Analytics Cookies on your device for performance monitoring. |

University of Cambridge > Talks.cam > Mathematical Physics Seminar > A gauge theoretic approach to Einstein 4-manifolds.

## A gauge theoretic approach to Einstein 4-manifolds.Add to your list(s) Download to your calendar using vCal - Joel Fine
- Tuesday 28 January 2014, 16:00-17:00
- DAMTP, room MR11.
If you have a question about this talk, please contact Dr Maciej Dunajski. I will describe a new way to formulate Einsteinâs equations on 4-manifolds, so that the independent variable is not a Riemannian metric, but instead an SO(3) connection on an auxiliary bundle. The metric is then determined algebraically from the curvature of the connection. (This is reminiscent of the way that Maxwellâs equations can be thought of as equations for a U(1)-connection, whose curvature then gives the electro-magnetic field.) This point of view gives a new action principle for Einstein metrics, discovered by Krasnov, which is seemingly less problematic than the Einstein-Hilber action. It also reveals a link between Einstein 4-manifolds and symplectic manifolds in dimension 6. Finally it leads to some interesting open questions which I hope to have time to discuss. This talk is part of the Mathematical Physics Seminar series. ## This talk is included in these lists:- All CMS events
- All Cavendish Laboratory Seminars
- All Talks (aka the CURE list)
- CMS Events
- CamTalks
- Centre for Health Leadership and Enterprise
- DAMTP info aggregator
- DAMTP, room MR11
- DS list 1
- Featured lists
- Geometry, Integrability and Twistor Theory
- HEP web page aggregator
- ME Seminar
- Mathematical Physics Seminar
- School of Physical Sciences
- Thin Film Magnetic Talks
Note that ex-directory lists are not shown. |
## Other listsCambridge Centre for Risk Studies Graduate Seminars Logic and Semantics for Dummies## Other talksTitle and date to be confirmed A continuum theory for the fractures in brittle and ductile solids Nonstationary Gaussian process emulators with covariance mixtures Sine-Gordon on a Wormhole Ethics for the working mathematician, seminar 8: Standing on the shoulders of giants. Vane Rheometer re-visited: effect of viscosity |