Monday, March 24, 2008
Three cheers for mathematician Avraham Trahtman! The 63-year old emigrated from Russia to Israel in 1992, then worked many odd jobs in maintenance and security while seeking work in mathematics. The "Road Colouring Problem" had been first posed in 1970 and has defied decades of mathematicians. It conjectures that there is a "universal map" that allows one to arrive at a destination regardless of origin. Regardless of Trahtman's humble origins, he has arrived. He prefers simple solutions, and his was written in pencil on 8 pages. It is also posted here. We can understand the Universe without fancy machines; all one really needs is a good pencil.