Doubly-boosted vector cosmologies from disformal metrics
  A systematic dynamical system approach is applied to study the cosmology of
anisotropic Bianchi I universes in which a vector field is assumed to operate
on a disformal frame. This study yields a number of new fixed points, among
which anisotropic scaling solutions. Within the simplifying assumption of
(nearly) constant-slope potentials these are either not stable attractors, do
not describe accelerating expansion or else they feature too large anisotropies
to be compatible with observations. Nonetheless, some solutions do have an
appeal for cosmological applications in that isotropy is retained due to rapid
oscillations of the vector field.
