The Definition of Energy in Non-Symmetric Translation Invariant Dirichlet Spaces. Gunnar Forst — 1975 Mathematische Annalen
Symmetric Harmonic Groups and Translation Invariant Dirichlet Spaces. Gunnar Forst — 1972 Inventiones mathematicae
Note sur des principes duaux en théorie du potentiel Gunnar Forst — 1979 Bulletin de la Société Mathématique de France
On a theorem of M. Itô Gunnar Forst — 1978 Annales de l'institut Fourier The note gives a simple proof of a result of M. Itô, stating that the set of divisors of a convolution kernel is a convex cone.