Abstract

Extending earlier results on the existence of bounded imaginary powers for cone differential operators on weighted Lp-spaces Hp0,γ(B) over a manifold with conical singularities, we show how the same assumptions also yield the existence of bounded imaginary powers on higher order Mellin–Sobolev spaces Hps,γ(B), s≥0.As an application we consider the Cahn–Hilliard equation on a manifold with (possibly warped) conical singularities. Relying on our work for the case of straight cones, we first establish R-sectoriality (and thus maximal regularity) for the linearized equation and then deduce the existence of a short time solution with the help of a theorem by Clément and Li. We also obtain the short time asymptotics of the solution near the conical point.

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