Sharp upper bounds on resonances for perturbations of hyperbolic space. - David Borthwick (Asymptot. Anal., 2010)

Resonance asymptotics for asymptotically hyperbolic manifolds with warped-product ends. - David Borthwick; Pascal Philipp (Asymptot. Anal., 2014)

Distribution of Resonances for Hyperbolic Surfaces. - David Borthwick (Exp. Math., 2014)

Existence and Stability of Schrödinger Solitons on Noncompact Manifolds. - David Borthwick; Roland Donninger; Enno Lenzmann; Jeremy Louis Marzuola (SIAM J. Math. Anal., 2019)