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Sedrakyan Hayk is known for Sedrakyan-Mozayeni theorem. Hayk Sedrakyan (born 1987 in USSR) is a mathematician, Professor of Mathematics in France, Doctor of Mathematical Sciences in USA, France, Armenia, and author of Olympiad style mathematics books published in USA (Springer Publishing), South Korea and other countries. He is the son of a prominent mathematician Nairi Sedrakyan, the author of one of the hardest problems ever proposed in the history of International Mathematical Olympiad. Hayk Sedrakyan has defended his PhD thesis in 2014 (at the age of 26) in mathematics (Game Theory and Optimal Control) in Sorbonne University (Pierre and Marie Curie University), Paris, France, the same year was ranked as the 1st in France, 1st in Europe and 4th in the world in field of mathematics according to Academic Ranking of World Universities. Sedrakyan Hayk has worked as a young scientific researcher in one of the Research and Innovation programs organized and funded by European Commission. He was elected President of the students’ general assembly of Cité Internationale Universitaire de Paris representing around 10,000 students of 162 nationalities, the same year they were nominated for a Nobel Peace Prize. Despite of his young age Sedrakyan Hayk (being few years younger than most of the participants) has participated and won a Medal in 45th International Mathematical Olympiad in Greece, an Honorable Mention in 44th International Mathematical Olympiad in Japan and in 43rd International Mathematical Olympiad in the United Kingdom.

Early life and education
Hayk Sedrakyan was born in USSR in the city of Yerevan in Armenian SSR. Later on he left Armenia for Austria to advance his mathematical knowledge and to study mathematics at Johannes Kepler University, one of the leading Universities in Austria. He has continued his master studies in Germany and defended his PhD thesis in 2014 (at the age of 26) in mathematics (Game Theory and Optimal Control) at the Sorbonne University (Pierre and Marie Curie University), Paris, France, the same year was ranked as the 1st in France, 1st in Europe and 4th in the world in field of mathematics according to Academic Ranking of World Universities. He has received 3 Master's degrees in mathematics (from Germany, Austria, Armenia) and has spent a small part of his PhD studies in Italy.

Mathematics coaching and Olympiads
Hayk Sedrakyan has worked as a mathematics Olympic coach in USA, Russia, France, Singapore, Kazakhstan, Germany, Armenia, Austria, Czech Republic. He is the author of Olympiad style mathematics books published in USA (Springer Publishing), South Korea and other countries.

Honours
Awards
 * Bronze medal winner, 45th International Mathematical Olympiad.
 * Honorable-mention winner, 44th International Mathematical Olympiad.
 * Marie Curie PhD scholarship winner, funded by European Commission.
 * Erasmus Mundus master program scholarship winner.
 * DAAD summer school scholarship winner, Frankfurt am Main.
 * Excellence scholarship winner, Yerevan State University.

Translated works

 * Book. Geometric Inequalities. Methods of proving, Springer, USA, ISBN 978-3-319-55079-4.
 * Book. Inequalities. Methods of proving 1, Kyowoo publ., South Korea, ISBN 979-11-251-0138-3.
 * Book. Inequalities. Methods of proving 2, Kyowoo publ., South Korea, ISBN 979-11-251-0139-0.
 * Scientific article. "Stability of Solutions to Hamilton–Jacobi Equations Under State Constraints", Springer, Volume 168, Issue 1, pp 63–91
 * Scientific article. "Stable representation of convex Hamiltonians", Elsevier, Volume 100, May 2014, Pages 30–42
 * Scientific article. "Averaging problem for weakly coupled nonexpansive control systems", Elsevier, Volume 113, January 2015, Pages 147–158