Global existence of solutions for semilinear wave equations in Friedmann-Lemaître-Robertson-Walker spacetime
arXiv:2106.14023
Abstract
We consider the nonlinear massless wave equation belonging to some family of the Friedmann-Lemaître-Robertson-Walker (FLRW) spacetime. We prove the global in time small data solutions for supercritical powers in the case of decelerating expansion universe.