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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > Supergravity as generalised geometry

## Supergravity as generalised geometryAdd to your list(s) Download to your calendar using vCal - Waldram, D (Imperial College London)
- Wednesday 11 January 2012, 14:00-15:00
- Seminar Room 1, Newton Institute.
If you have a question about this talk, please contact Mustapha Amrani. Mathematics and Applications of Branes in String and M-theory We show how extensions of conventional differential geometry, so called “generalised geometry”, give a natural way of formulating type II and eleven-dimensional supergravity theories, unifying the bosonic fields and symmetries. There is a natural action of the U- and T-duality groups E_d(d) and O(d,d) and the formalism shows that the supergravity theories have an enhanced local symmetry. By introducing the analogue of the Levi-Civita connection we find that the action and equations of motion simplify, writable in terms of a generalised Ricci tensor. The connection also encodes the supersymmetry variations and fermionic equations of motion. There are interesting implications for describing supersymmetric backgrounds and connections to the embedding tensor formalism. This talk is part of the Isaac Newton Institute Seminar Series series. ## This talk is included in these lists:- All CMS events
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