Social-networkScience (and maths) is a small world. We even study this fact via Erdös numbers. The Erdös number of a scientist is the number of links between him or herself and the well-known and very prolific mathematician Paul Erdös. Each link is a paper. My Erdös number is 4, because I have published a scientific paper with someone with a number of 3, who has published with someone with a number of 2, who has published with someone with a number of 1. Someone with an Erdös number of 1 has worked directly with Erdös himself. Erdös is chosen as he is the mathematician published more scientific papers than anyone else in history. Continue reading »

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