Lajos Pósa (mathematician)

Lajos Pósa (also known as Louis Pósa cited; born December 9, 1947) is a Hungarian mathematician who is engaged in graph theory and combinatorics.

Posa was the son of a mathematician and was a child prodigy. Paul Erdős, who looked out between his travels in Hungary always looking for new talent, promoted him early as his favorite student. Erdős said that he was like when they first met in 1959 very impressed with him when he when eating in just half a minute, a problem solved, had his own words for the Erdős used earlier ten minutes: are given (n 1) numbers less than or equal to 2n. Show that at least one pair from this set is relatively prime. He soon broke proposed by Erdős problems in graph theory and Ramsey theory, and at age 14 you could talk to him after Erdős as with a trained mathematician.

He gave 1962 new necessary conditions for the existence of Hamilton paths. Shortly before his first release appeared with Erdős.

Posa was employed at the University of Budapest and the Alfred Renyi Institute of the Hungarian Academy of Sciences. Later he turned to the disappointment of Erdős all of mathematics education for children and young people. Some well-known Hungarian mathematician among his students ( as László Babai, Gábor Tardos and Imre Z. Rusza ).

In 2000 he received the Karolyi Simonyi Research Scholarship.