The Bulletin of the American Mathematical Society acclaimed this text as "a welcome addition" to the literature of nonstandard analysis, a field related to number theory, algebra, and topology. The first half presents a self-contained introduction to the subject, and the second part explores applications to stochastic analysis and mathematical physics. 1986 edition.
Sergio Albeverio is an award-winning mathematical physicist who taught in universities all over the world. Jens Erik Fenstad is a mathematician who taught at the University of Oslo and served as a member of the NATO Science Committee. Raphael Hoegh-Krohn was one of the outstanding mathematical physicists of our age. Tom Lindstrom is a professor of mathematics teaching at the University of Oslo.