Neue Mitglieder und Todesfälle Promotionen.

The article contains information about new members and deaths in the mathematical community. Various professors and other individuals who have passed away are mentioned, including Prof. Dr. Michael Radtke, Prof. em. Dr. Helmut Behr, Prof. i. R. Dr. Kurt Peter Müller, Prof. i. R. Dr. Wolfgang Wefelmeyer, Prof. em. Dr. Michael Kohlmann, Klaus Winkler, Gerhard Wulff, Prof. em. Dr. Alexander Prestel, apl. Prof. Dr. Jürgen Eckhoff, and Prof. em. Dr. Dr. h. c. Heinz König. In addition, promotions from various universities are listed, including the Chemnitz University of Technology, the Technical University of Dortmund, the University of Duisburg-Essen, the Albert-Ludwigs-University Freiburg, the Goethe University Frankfurt, and the University of Hamburg. The given list includes a number of dissertations defended at various German universities. The topics of the dissertations range from mathematical modeling to chemical analysis and numerical approximation. The names of the doctoral candidates and their supervisors are also listed. [Extracted from the article]