Slow decay of waves in gravitational solitons Sharmila Gunasekaran Gnanam Memorial University of Newfoundland Gravitational solitons are globally stationary horizonless asymptotically flat spacetimes. In this talk, I will describe the methodology used to prove that massless scalar waves in a

Geometric Horizons in the Szekeres Spacetime Nicholas Layden (Dalhousie University) A new conjecture for geometric horizons has been introduced which may provide a potential alternative to using apparent horizons and related surfaces for analyzing the dynamics of black hole spacetimes.