# András Sárközy

**András Sárközy** (born 16 January 1941, in Budapest) is a Hungarian mathematician, working in analytic and combinatorial number theory, although his first works were in the fields of geometry and classical analysis. He has the largest number of papers co-authored with Paul Erdős (a total of 62); he has an Erdős number of one. He proved the Furstenberg–Sárközy theorem that every sequence of natural numbers with positive upper density contains two members whose difference is a full square. He was elected a corresponding member (1998), and a full member (2004) of the Hungarian Academy of Sciences. He received the Széchenyi Prize (2010).

## References

- C. L. Stewart (2000). "András Sárközy - a retrospective on the occasion of his sixtieth birthday" (PDF). University of Waterloo. Retrieved 2016-08-08.

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