THE ROLE OF NONHYDRODYNAMIC MODES IN BJORKEN FLOW.

When hydrodynamics is pushed to the limits of its applicability, the influence of transient nonhydrodynamic modes becomes important. As hydrodynamics plays an important role in modelling heavy-ion collisions, understanding the nonhydrodynamic sector of QCD is a worthy, but difficult, goal. In this contribution, I describe the role that nonhydrodynamic modes play in toy models of the expanding quark-gluon plasma, with a focus on my work in kinetic theory. [ABSTRACT FROM AUTHOR]