Erdős number

• Erdos number, Erdoes number, Erdœs number, Erdös number, Erdós number

Named after Hungarian mathematician Paul Erdős.

Erdős number (plural Erdős numbers)

1. (mathematics) A number describing the degree of collaboration between a mathematician and Paul Erdős, defined such that a mathematician who has written a paper with Erdős has an Erdős number of 1, a mathematician who has written a paper with somebody having an Erdős number of 1 has an Erdős number of two, and so on.

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