Thomas Royen

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Thomas Royen (born July 6, 1947 in Frankfurt / Main ) is a German statistician .

Life

His parents were Paul Royen, full professor at the Institute for Inorganic Chemistry at the Johann Wolfgang Goethe University in Frankfurt am Main , and the chemist Elisabeth born. Blunt Brentano . Royen studied mathematics and physics from 1966 to 1971 at the University of Frankfurt and the Albert Ludwig University of Freiburg . He then worked as a tutor at the Mathematics Institute at Freiburg University until he moved to Dortmund Technical University for his doctorate in 1973 . After receiving his doctorate in 1975, he worked there as a research assistant in the statistics department.

At the beginning of 1977 he accepted a position as a biometrician at the chemical and pharmaceutical company Hoechst AG . From 1979 to 1985 he worked there in the department for education and training as a lecturer for mathematics and statistics; In addition, since 1982 he was responsible for training the mathematical-technical assistants (industrial IT specialists). From 1985 until his retirement in 2010, Royen taught as a professor of mathematics at the Bingen University of Applied Sciences .

Royen lives in Schwalbach am Taunus and is married.

plant

Since 1978 Royen has published more than 30 scientific papers, mainly on multivariate chi-square and gamma distributions as well as the so-called maximum range test for pairwise statistical comparisons of mean vectors. Although he published in recognized specialist journals, some works were rejected, in Royen’s opinion even without careful examination. Articles appeared in relatively unknown publications.

In the summer of 2014 Royen succeeded - at that time for four years in retirement - with the help of the Laplace transform for multivariate gamma distributions of the evidence for the first time in 1955 formulated Gaussian FKG inequality ( Engl. Gaussian correlation inequality , shortly GCI). He published his proof on the science platform arXiv and in a little reputable Indian journal for statistics, which is why the contribution was initially barely noticed. It was only when two Polish mathematicians presented Royen’s work on arXiv at the end of 2015 that he received recognition for his subject. International media became aware of him in 2017 through an article in the science magazine Quanta .

Publications

literature

Footnotes

  1. ↑ CV on RLP-Forschung.de
  2. ↑ Holger Dambeck: The miracle grandpa of mathematics. In: Der Spiegel , April 4, 2017, online , accessed April 7, 2017.
  3. ^ Sibylle Anderl: The proof. A math retiree from Taunus solved a decades-old problem. In: Frankfurter Allgemeine Zeitung of April 7, 2017, p. 11.
  4. ↑ Thomas Royen: A simple proof of the Gaussian correlation conjecture extended to some multivariate gamma distributions , in: arXiv.org , August 13, 2014, for download , accessed on April 7, 2017. Extended by Thomas Royen: Some probability inequalities for multivariate gamma and nornal distributions , in: arXiv.org , July 2, 2015, for download , accessed April 7, 2017.
  5. ^ Thomas Royen: A simple proof of the Gaussian correlation conjecture extended to some multivariate gamma distributions . In: Far East Journal of Theoretical Statistics , Volume 48, No. 2, Pushpa Publishing House, Allahabad 2014, pp. 139-145.
  6. ↑ Rafał Latała and Dariusz Matlak: Royen's proof of the Gaussian correlation inequality , in: arXiv.org , December 29, 2015, for download , accessed April 7, 2017.
  7. ↑ Chloe Farand: Retired German man solves one of world's most complex maths problem with “simple proof” . In: The Independent, April 3, 2017, accessed May 15, 2017.
  8. ↑ Natalie Wolchover: A Long-Sought Proof, Found and Almost Lost , in: Quanta Magazine , March 28, 2017, online , accessed April 7, 2017.
personal data
SURNAME Royen, Thomas
BRIEF DESCRIPTION German statistician
DATE OF BIRTH July 6, 1947
PLACE OF BIRTH Frankfurt / Main