Double field theory (DFT) is a proposal to incorporate T-duality, a distinctive symmetry of
string theory, as a symmetry of a field theory defined on a double configuration space. The …

We review double field theory (DFT) with emphasis on the doubled spacetime and its
generalized coordinate transformations, which unify diffeomorphisms and b‐field gauge …

We show that generalised geometry gives a unified description of bosonic eleven-
dimensional supergravity restricted to a d-dimensional manifold for all d≤ 7. The theory is …

A bstract We investigate the generalised diffeomorphisms in M-theory, which are gauge
transformations unifying diffeomorphisms and tensor gauge transformations. After giving an …

A bstract We reformulate eleven-dimensional supergravity, including fermions, in terms of
generalised geometry, for spacetimes that are warped products of Minkowski space with a d …

We review recent developments in duality symmetric string theory. We begin with the world-
sheet doubled formalism which describes strings in an extended spacetime with extra …

A bstract We consider a flux formulation of Double Field Theory in which fluxes are
dynamical and field-dependent. Gauge consistency imposes a set of quadratic constraints …

We show that generalised geometry gives a unified description of maximally supersymmetric
consistent truncations of ten‐and eleven‐dimensional supergravity. In all cases the …

A bstract We find necessary and sufficient conditions for gauge invariance of the action of
Double Field Theory (DFT) as well as closure of the algebra of gauge symmetries. The so …

This is a review of exceptional field theory: a generalisation of Kaluza–Klein theory that
unifies the metric and p-form gauge field degrees of freedom of supergravity into a …