Klaus Bichteler

Klaus Richard Bichteler is a German-American mathematician born in Leipzig in 1938.[1] He earned his Ph.D. from the University of Hamburg in 1965.[2] Bichteler is known for his contributions to stochastic integration and functional analysis, including his work on the theory of stochastic integrals with predictable integrands.[5]

Leipzig, Germany Mar 15, 1938 Wikipedia
Mathematics Stochastic Analysis Functional Analysis