L p -analyticity of Schrödinger semigroups on Riemannian manifolds Hendrik Vogt (2003) Banach Center Publications
On the existence of an invariant measure for the dynamical system generated by partial differential equation Antoni Leon Dawidowicz (1983) Annales Polonici Mathematici
One-parameter submonoids in locally complete differentiable monoids Mitch Anderson (1980) Colloquium Mathematicae
Some abstract properties of semigroups appearing in superconformal theories. S. Duplij (1997) Semigroup forum