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Erdős Number

The Erdős number is the number of "hops" needed to connect the author of a paper with the prolific late mathematician Paul Erdős. An author's Erdős number is 1 if he has co-authored a paper with Erdős, 2 if he has co-authored a paper with someone who has co-authored a paper with Erdős, etc. (Hoffman 1998, p. 13).

Erdős wrote papers with a total of 509 coauthors, meaning 509 people have Erdős number 1.

See also

Erdős-Borwein Constant, Small World Network

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References

de Castro, R. and Grossman, J. W. "Famous Trails to Paul Erdős." Math. Intell. 21, 51-63, 1999.Grossman, J. "The Erdős Number Project." http://www.oakland.edu/enp/.Hoffman, P. The Man Who Loved Only Numbers: The Story of Paul Erdős and the Search for Mathematical Truth. New York: Hyperion, 1998.Lewandowski, J.; Nurowski, P.; and Abramowicz, M. A. "Erdős Number Updates." Math. Intell. 22, 3, 2000.

Referenced on Wolfram|Alpha

Erdős Number

Cite this as:

Weisstein, Eric W. "Erdős Number." From MathWorld--A Wolfram Web Resource. https://mathworld.wolfram.com/ErdosNumber.html

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