Gerhard Masur (1901-1975)

Anna Lenzhen and Howard Masur

We study the asymptotic geometry of Teichmüller geodesic rays. We show that when the transverse measures to the vertical foliations of the quadratic differentials determining two different rays are topologically equivalent, but are not absolutely continuous with respect to each other, then the rays diverge in Teichmüller space.

Speaker: Gerhard Grunder, Germany

Depression after coronary artery bypass graft (CABG) surgery is common (up to 40%) and increases risk of cardiac morbidity and mortality in the first year by more than two fold. However, current scarcity of data on etiopathogenesis of post-CABG depression hampers development of prevention or treatment strategies of post-CABG depression. “Vascular Depression” hypothesis posits that cerebrovascul...

and Gerhard Nygaard

In dealing with a large-scale system, one usually does not have adequate knowledge of the plant parameters and interactions among subsystems. The decentralized adaptive technique, designed independently for local subsystems and using locally available signals for feedback propose, is an appropriate strategy to be employed. In the context of decentralized adaptive control, a number of results ha...

Gerhard Ertl - Nobel Lecture

Johannes Holtfreter (1901-1992)

Johannes Holtfreter [6] made important discoveries about the properties of the organizer [7] discovered by Hans Spemann [8]. Although he spent much time away from the lab over many years, he was a productive researcher. His colleagues noted that the time he spent away helped revitalize his ideas. He is credited with the development of a balanced salt medium to allow embryos to develop; the disc...