Fritz Lehmann (1936–1994)

Supersymmetric Källen-Lehmann representation

We find the general form of supersymmetric invariant two point functions. By imposing supersymmetric positivity we obtain the general supersymmetric Källen-Lehmann representation.

Fritz Rohrlich and His Work

Fritz Rohrlich was born in Vienna, Austria, on May 12, 1921, as the only child of the lawyer Egon Rohrlich and his wife Illy, n6e Schwarz. His seven year older half-brother, George, lived with his father's first wife (Rosa Tenzer), but spent his weekends usually at his father's home. George was to play an important role in the life of Fritz. Both of them attended the same high school, the Realg...

Lehmann family of ROC curves.

Receiver operating characteristic (ROC) curves evaluate the discriminatory power of a continuous marker to predict a binary outcome. The most popular parametric model for an ROC curve is the binormal model, which assumes that the marker, after a monotone transformation, is normally distributed conditional on the outcome. Here, the authors present an alternative to the binormal model based on th...

Lehmann and P A Jeggo

Buildings Brian Lehmann Cambridge University