The motto of connectivity and superconductivity is that the solutions of the Ginzburg-Landau equations are qualitatively in?uenced by the topology of the boundaries. Special attention is given to the "zero set,"the set of the positions (usually known as "quantum vortices") where the order parameter vanishes. The paradigm of connectivity and superconductivity is the Little- Parks e?ect, discussed in most textbooks on superconductivity. This volume is intended to serve as a reference book for graduate students and researchers in physics or mathematics interested in superconductivity, or in the...

On March 8/9, 1976 a workshop on Mathematical Models in Medicine was held at Mainz (German Federal Republic) by the group of Mathe- matical Models of the Deutsche Gesellschaft fUr Medizinische Doku- mentation, Informatik und Statistik. Purpose of this conference was to bring together experts from the GFR and neighbouring countries working in this field to evaluate possibilities and limits of this area of research in discussions with interested participants. This issue of Lecture Notes contains the invited contributions as well as the relevan remarks made by the discussants. Corresponding to...