Mahdi Haghshenas

Boundedness and Decay of Waves on Spatially Flat Decelerated FLRW Spacetimes

Abstract We study the linear wave equation on a class of spatially homogeneous and isotropic Friedmann–Lemaǐtre–Robertson–Walker (FLRW) spacetimes in the decelerated regime with spatial topology $$\mathbb {R}^3$$ R 3 . Employing twisted t -weighted multiplier vector fields, we es...