William Henry Young

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William Henry Young (born October 20, 1863 in London , † July 7, 1942 in Lausanne , Switzerland ) was an English mathematician .

Young graduated from Cambridge University . Young was married to the mathematician Grace Chisholm Young , with whom he also worked closely. Both met in Cambridge and together they went to the continent for several years, first to Göttingen, a year to Italy, then from 1899 back to Göttingen and from 1908 in Geneva. Young visited Cambridge regularly, where he was an examiner. He was also the examiner of several other English universities such as the University of London. He was part-time professor of mathematics at Calcutta University from 1913 to 1917 , where he taught in the winter, and from 1913 to 1919 professor of philosophy and history of mathematics at the University of Liverpool (where he taught in the summer during his time as professor in India) . 1919 to 1923 he was a professor at the University College of Wales at Aberystwyth. The family lived in Lausanne from 1915. In 1924 he gave a plenary lecture at the International Congress of Mathematicians in Toronto (Some Characteristic Features of Twentieth Century Pure Mathematical Research) and in 1928 at the one in Bologna (The Mathematical Method and Its Limitations). In the 1930s he attended universities around the world, including South America in 1936/37. At the beginning of the Second World War he was in Lausanne, where he was separated from his family and died there before the end of the war.

He dealt with the theory of real functions and Fourier series and independently, but two years later as Henri Lebesgue, found a variant of the Lebesgue integral . The Young's inequality is named after him and the Hausdorff-Young inequality is named after him and Felix Hausdorff .

With Grace Chisholm Young he had two sons and four daughters, including Rosalind Tanner (called Cecily), who also became a mathematician.

1907 Young was accepted as a member (" Fellow ") in the Royal Society , which in 1928 awarded him the New Year's Eve Medal . From 1922 to 1924 he was President of the London Mathematical Society , whose De Morgan Medal he received in 1917. From 1929 to 1936 he was President of the International Mathematical Union , which he tried in vain to save from the national disputes that resulted primarily from France's attitude. He was an honorary doctor of the Universities of Calcutta, Geneva and Strasbourg.

Fonts

  • The fundamental theorems of the differential calculus, 1910
  • with Grace Chisholm Young: The first book of geometry, 1905 (a geometry book for children)
  • with Grace Chisholm Young: The theory of sets of points, 1906

Web links

personal data
SURNAME Young, William Henry
BRIEF DESCRIPTION English mathematician
DATE OF BIRTH October 20, 1863
PLACE OF BIRTH London
DATE OF DEATH July 7, 1942
Place of death Lausanne , Switzerland