Applications of Lie semigroups in analysis
In: The analytical and topological theory of semigroups : trends and developments, Jg. 1990, S. 27-50Convexity Properties of Graßmannians
In: Seminar Sophus Lie, Jg. 2.1992, S. 13-20The hyperboloid as ordered symmetric space
In: Seminar Sophus Lie, Jg. 1.1991, S. 135-141Maximal semigroups and the support of Gauss-semigroups
In: Probability and Bayesian statistics : [based on the proceedings of the International Symposium on Probability and Bayesian Statistics, held September 23 - 26, Jg. 1987, S. 257-262Radon transform on halfplanes via group theory
In: Noncompact lie groups and some of their applications (NATO ASI series : Series C, Mathematical and physical sciences : 429), Jg. 1994, S. 141-146Some Lie theory of semigroups based on examples
In: Semesterbericht Funktionalanalysis, Jg. 13.1988, S. 107-118Spectrally ordered Lie algebras
In: Proceedings of the XVI International Colloquium, held at Varna, Bulgaria, June 15 - 20, 1987 (Lecture notes in physics : 313), Jg. 1988, S. 11-16