Paul Erdős
Hungarian mathematician (1913–1996)

Paul Erdős (Hungarian: Erdős Pál [ˈɛrdøːʃ ˈpaːl]; 26 March 1913 – 20 September 1996) was a Hungarian mathematician. He was one of the most prolific mathematicians and producers of mathematical conjectures of the 20th century. Erdős pursued and proposed problems in discrete mathematics, graph theory, number theory, mathematical analysis, approximation theory, set theory, and probability theory. Much of his work centered on discrete mathematics, cracking many previously unsolved problems in the field. He championed and contributed to Ramsey theory, which studies the conditions in which order necessarily appears. Overall, his work leaned towards solving previously open problems, rather than developing or exploring new areas of mathematics.
He taught at various universities in the United States and Israel. Erdős's output was prolific; he published around 1,500 mathematical papers during his lifetime, many being collaborations with other mathematicians, making him arguably the most prolific mathematician in history. This prompted the creation of the Erdős number, the number of steps in the shortest path between a mathematician and Erdős in terms of co-authorships.
He was known both for his social practice of mathematics, working with more than 500 collaborators, and for his eccentric lifestyle.
The public source identifies “Paul Erdős” as hungarian mathematician (1913–1996). This brief keeps that definition visible, then builds a research path around Paul, Erdős and Hungarian.
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This entry incorporates text from “Paul Erdős” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.