Constraints from Cosmography in various parameterizations
  We use cosmography to present constraints on the kinematics of the Universe
without postulating any underlying theoretical model a priori. To this end, we
use a Markov Chain Monte Carlo analysis to perform comparisons to the supernova
Ia union 2 compilation, combined with the Hubble Space Telescope measurements
of the Hubble constant, and the Hubble parameter datasets. The cosmographic
approach to our analysis is revisited and extended for new notions of redshift
presented as alternatives to the redshift z. Furthermore, we introduce a new
set of fitting parameters describing the kinematical evolution of the Universe
in terms of the equation of state of the Universe and derivatives of the total
pressure. Our results are consistent with the \Lambda CDM model, although
alternative models, with nearly constant pressure and no cosmological constant,
match the results accurately as well.
