Bounce and cyclic cosmology in weakly broken galileon theories
  We investigate the bounce and cyclicity realization in the framework of
weakly broken galileon theories. We study bouncing and cyclic solutions at the
background level, reconstructing the potential and the galileon functions that
can give rise to a given scale factor, and presenting analytical expressions
for the bounce requirements. We proceed to a detailed investigation of the
perturbations, which after crossing the bouncing point give rise to various
observables, such as the scalar and tensor spectral indices and the
tensor-to-scalar ratio. Although the scenario at hand shares the disadvantage
of all bouncing models, namely that it provides a large tensor-to-scalar ratio,
introducing an additional light scalar significantly reduces it through the
kinetic amplification of the isocurvature fluctuations.
