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University of Cambridge > Talks.cam > Isaac Newton Institute Seminar Series > $E_d(d)xR^+$ Generalised Geometry and 11D Supergravity

## $E_d(d)xR^+$ Generalised Geometry and 11D SupergravityAdd to your list(s) Download to your calendar using vCal - Strickland-Constable, C (Imperial)
- Thursday 16 February 2012, 15:00-15:45
- 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 It is well known that dimensional reductions of eleven-dimensional supergravity have unexpected hidden symmetries. $E_d(d)xR^+$ generalised geometry provides a unified geometrical formulation of the internal sector of the theory, in which these symmetries appear naturally as structure groups. The construction is exactly analogous to ordinary Riemannian geometry, but with an enlarged tangent space. In particular, using the analogue of the Levi-Civita connection, the bosonic action and equations of motion can be expressed neatly as Einstein gravity for a generalised curvature tensor. Supersymmetry also appears in the process and the fermionic sector can be concisely reformulated in terms of the generalised connection. The talk will review the details of this formalism as well as discussing some explicit examples in particular dimensions. 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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