文摘
This article is dedicated to the memory of Professor Uriel George Rothblum who passed away unexpectedly on March 26, 2012. Professor Rothblum was known to all of us as Uri. Following some biographical details, a survey of some of Uri¡¯s research contributions is given. In light of Uri¡¯s extensive list of publications and large number of coauthors this is by no means a comprehensive summary of Uri¡¯s research.