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Michel Plancherel (French pronunciation: [miʃɛl plɑ̃ʃʁɛl]; 16 January 1885 – 4 March 1967) was a Swiss mathematician.

Michel Plancherel
Michel Plancherel at the International Mathematical Congress, Zürich 1932
Born(1885-01-16)16 January 1885
Bussy, Switzerland
Died4 March 1967(1967-03-04) (aged 82)
Zürich, Switzerland
Alma materUniversity of Fribourg
Known forPlancherel measure
Plancherel theorem
Plancherel theorem for spherical functions
Scientific career
FieldsMathematics
InstitutionsETH Zurich
ThesisSur les congruences (mod. 2m) relatives au nombre des classes des formes quadratiques binaires aux coefficients entiers et à discriminant négatif (1907)
Doctoral advisorMathias Lerch

Biography

He was born in Bussy (Canton of Fribourg, Switzerland) and obtained his Diplom in mathematics from the University of Fribourg and then his doctoral degree in 1907 with a thesis written under the supervision of Mathias Lerch. Plancherel was a professor in Fribourg (1911), and from 1920 at ETH Zurich.

He worked in the areas of mathematical analysis, mathematical physics and algebra, and is known for the Plancherel theorem[1] in harmonic analysis. He was an Invited Speaker of the ICM in 1924 at Toronto[2] and in 1928 at Bologna.

He was married to Cécile Tercier, had nine children, and presided at the Mission Catholique Française in Zürich.

References

  1. ^ Plancherel, Michel (1910) "Contribution a l'etude de la representation d'une fonction arbitraire par les integrales définies," Rendiconti del Circolo Matematico di Palermo, vol. 30, pages 289-335.
  2. ^ Plancherel, Michel (1924) " Sur les séries de fonctions orthogonales." Archived 2017-12-03 at the Wayback Machine In Proceedings of the International Mathematical Congress, Toronto, vol. 1, pp. 619–622.
  • O'Connor, John J.; Robertson, Edmund F., "Michel Plancherel", MacTutor History of Mathematics Archive, University of St Andrews
  • Short biography, Department of mathematics, University of Fribourg (in French)