2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/173105We give sufficient conditions for existence, uniqueness and ergodicity of invariant measures for Musiela's stochastic partial differential equation with deterministic volatility and a Hilbert space valued driving Lévy noise. Conditions for the absence of arbitrage and for the existence of mild solutions are also discussed.17 pages, final versionProbability60G51, 60H15, 91B28text