Heard of the Erdös number? It’s named for the great Hungarian mathematician Paul Erdös
Heard of the Erdös number? It’s named for the great Hungarian mathematician Paul Erdös. As I wrote in this space some years ago: “He worked with other mathematicians... and that’s where the idea for the Erdös number came from. If you collaborated with him on a paper, your Erdös number is 1. (About 500 such mathematicians). If you collaborated with someone who had collaborated with him, it’s 2. (Over 9000). And so on. Your number measures what you might call your ‘collaborative distance’ from the man. (Erdös himself? 0, of course.)"