Chalk up another one: The best of Sidney Harris (Harris, Sidney)

Testimony of Sidney G

My name is Sidney Winter. I am the Deloitte and Touche Professor of Management, Emeritus, at The Wharton School of the University of Pennsylvania, where I spent 15 years in the Management Department. I am trained as an economist, and I previously was a tenured faculty member in two economics departments, those of Yale University (13 years) and the University of Michigan (8). One of my central r...

Sidney Winter Lecture Series

Available online 19 August 2010

Sidney Herbert Watkins (1912–1993)

The passing of Joshua Leibowitz on 10 July 1993 closed a long and distinguished chapter in the history of medicine. His particular blend of medical, linguistic and historical scholarship was representative of that Baltic-Jewish tradition of learning which contributed so much to European culture before its dispersal and decimation by the Nazi horror. He will be widely mourned by the history of m...

Sidney garfield-a personal recollection.

Yet another look at Harris’ ergodic theorem for Markov chains

The aim of this note is to present an elementary proof of a variation of Harris’ ergodic theorem of Markov chains. This theorem, dating back to the fifties [Har56] essentially states that a Markov chain is uniquely ergodic if it admits a “small” set (in a technical sense to be made precise below) which is visited infinitely often. This gives an extension of the ideas of Doeblin to the unbounded...