Sergio Salbany and his mathematical legacy

摘要

This article gives a brief outline of the life of Sergio Salbany (1941-2005) and of his mathematical career, coupled with his social outreach and political activity in South Africa until 1980, in Zimbabwe 1981-1992, in Botswana 1993-1997, and finally again in South Africa 1997-2005. We include a list of his mathematical publications. Salbany was best known for his research in the area of asymmetric topology, comprising topics such as bitopological spaces, quasi-uniform spaces, ordered spaces and quasi-pseudometric spaces. His publications in this area were essentially the first that explicitly described the functors that served to clarify the structure and aims of the then novel theory.