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Imre Z. Ruzsa is a Hungarian mathematician and professor at the University of Szeged. He is known for his work in additive number theory, combinatorics, and graph theory. He is the author of several books and over 200 research papers. Ruzsa was born in Budapest, Hungary, on 23 July 1953. He received his PhD in mathematics from the Eötvös Loránd University in Budapest in 1979. He then worked at the Hungarian Academy of Sciences from 1979 to 1989. In 1989, he became a professor at the University of Szeged. Ruzsa has received numerous awards and honors for his work, including the Széchenyi Prize in 2000, the Bolyai Prize in 2004, and the Kövesligethy Radó Prize in 2006. He was elected a corresponding member of the Hungarian Academy of Sciences in 2002 and a full member in 2008. Ruzsa is married and has two children. He is an avid chess player and enjoys playing the violin.

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Age 70 years old
Zodiac Sign Cancer
Born 23 July, 1953
Birthday 23 July
Birthplace Budapest
Nationality Hungarian

We recommend you to check the complete list of Famous People born on 23 July. He is a member of famous with the age 70 years old group.

Imre Z. Ruzsa Height, Weight & Measurements

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Imre Z. Ruzsa Net Worth

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Net Worth in 2023 $1 Million - $5 Million
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Timeline

2013

With Endre Szemerédi he proved subquadratic upper and lower bounds for the Ruzsa–Szemerédi problem on the number of triples of points in which the union of any three triples contains at least seven points. He proved that an essential component has at least (log x) elements up to x, for some ε > 0. On the other hand, for every ε > 0 there is an essential component that has at most (log x) elements up to x, for every x. He gave a new proof to Freiman's theorem. Ruzsa also showed the existence of a Sidon sequence which has at least x elements up to x.

In a result complementing the Erdős–Fuchs theorem he showed that there exists a sequence a0, a1, ... of natural numbers such that for every n the number of solutions of the inequality ai + aj ≤ n is cn + O(nlog n) for some c > 0.

1969

Ruzsa participated in the International Mathematical Olympiad for Hungary, winning a silver medal in 1969, and two consecutive gold medals with perfect scores in 1970 and 1971. He graduated from the Eötvös Loránd University in 1976. Since then he has been at the Alfréd Rényi Institute of Mathematics of the Hungarian Academy of Sciences. He was awarded the Rollo Davidson Prize in 1988. He was elected corresponding member (1998) and member (2004) of the Hungarian Academy of Sciences. He was invited speaker at the European Congress of Mathematics at Stockholm, 2004, and in the Combinatorics section of the International Congress of Mathematicians in Madrid, 2006. In 2012 he became a fellow of the American Mathematical Society.

1953

Imre Z. Ruzsa (born 23 July 1953) is a Hungarian mathematician specializing in number theory.