Sekeresi Gyolji


May 29, 2022

This person's first name is a Hungarian name, with the surname first and the first name followed. Hence the surname Sekeresi. Sekeresi György (Hungarian: Szekeres György; English: George Szekeres; 29 May 1911 – 28 August 2005) was an Australian mathematician.


Sekeresi was born in Budapest, Hungary, and received a degree in chemistry from the Budapest Technical University, where he worked for six years as an analytical chemist. He married Esther Klein in 1937. Because his Jewish family had to escape Nazi persecution, Sekereshi got a job in Shanghai, China. There they experienced World War II, Japanese occupation, and the beginning of the communist revolution. Their son Peter was born in Shanghai.


In 1948 he was offered and accepted a position at the University of Adelaide, Australia. After all his hardships, he began to thrive as a mathematician. A few years later his daughter Judy was born. In 1963 the family moved to Sydney and Sequeresi worked at the University of New South Wales, where he taught until his retirement in 1975. He also devised problems for the Secondary School Mathematics Olympiad run by the university he taught and the annual undergraduate competition run by the University of Sydney Mathematics Association. Sekeresi worked closely with many eminent mathematicians during his lifetime, including Er Dossipal, Esther Szekeres (née Esther Klein), Turan Fal, Volovash Beller, Ronald Graham, Alf van der Poorten, Miklos Laczkovich, and John Coates.


In 1968 he was awarded the Thomas Ranken Lyle Medal of the Australian Academy of Sciences. In May 2001, a festival was held to mark his 90th birthday at the University of New South Wales. In January 2001 he was awarded the Australian Centennial Medal for "Service to Australian Society and Science in Pure Mathematics". In 2001 the Australian Mathematical Society created the Sekeresi Gyorgi Medal in his honor. In June 2002 he became a member of the Order of the Order of Australia (AM) for his service to mathematics and science, in particular education and research, and for his support and development of the University of New South Wales Mathematics Competition. Australian Math Olympiad Team'

Personal life

The so-called happy ending problem is an example of how mathematics has permeated Gyorji's life. During 1933 Gyorgi and several other students met frequently in Budapest to discuss mathematics. At one of these meetings Esther Klein proposed the following problem: Prove that when five points in a plane are in their general positions, four of them form a convex quadrilateral. After allowing Gyorgi, Erdos Pal and other students to ponder for a moment, Esther explains her proof . Then, in 1935, Gyorgi and Parr wrote a paper generalizing these results. It is considered one of the basic works in the field of combinatorial geometry. Erdossi named the original problem the "Happy Ending" problem because it resulted in Gyorgi and Esther's marriage in 1937. Gyorgi and Esther died within an hour on August 28, 2005 in Adelaide, South Australia.

See also

strong water Seceres Snark generalized continuous fractions Kruskal-Sekeresi coordinates Sekeresi - Wilf number Schroeder's Equation The Erdos-Sekeresi theorem



Giles, JR, Wallis, JS, "George Szekeres. With Affection and Respect", Journal of the Australian Mathematical Society, Series A, Vol 21 (1976), No 4, pp. 385–392. Cowling, M., "Obituary George and Esther Szekeres", Australian Mathematical Society