Title: Relativistic effects in cosmic large-scale structure

Abstract: As our advanced telescopes produce ever larger and deeper maps
of our Universe we need to consider that observations are taken on our
past light cone and on a spacetime geometry that is pervaded by small
distortions. I will discuss how these aspects can be addressed with
N-body simulations of cosmic structure formation that are based directly
on a weak-field approximation to General Relativity. The subtle
relativistic effects in cosmic structure can tell us how gravity
operates on the largest scales that we observe and may hold the key to
unravelling the mystery of dark energy.