Michel Plancherel
{{Short description|Swiss mathematician (1885–1967)}}
{{Infobox scientist
| name = Michel Plancherel
| image = Michel Plancherel (1932).tif
| image_size =
| caption = Michel Plancherel at the International Mathematical Congress, Zürich 1932
| birth_date = {{birth date|1885|1|16|df=yes}}
| birth_place = Bussy, Switzerland
| death_date = {{death date and age |1967|3|4|1885|1|16|df=yes}}
| death_place = Zürich, Switzerland
| fields = Mathematics
| workplaces = ETH Zurich
| alma_mater = University of Fribourg
| thesis_title = Sur les congruences (mod. 2m) relatives au nombre des classes des formes quadratiques binaires aux coefficients entiers et à discriminant négatif
| thesis_url = https://bcufr.swisscovery.slsp.ch/permalink/41SLSP_BCUFR/13cv4r8/alma991017442249705509
| thesis_year = 1907
| doctoral_advisor = Mathias Lerch
| doctoral_students =
| known_for = Plancherel measure
Plancherel theorem
Plancherel theorem for spherical functions
| awards =
}}
Michel Plancherel ({{IPA|fr|miʃɛl plɑ̃ʃʁɛl}}; 16 January 1885 – 4 March 1967) was a Swiss mathematician.
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 theoremPlancherel, 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. in harmonic analysis. He was an Invited Speaker of the ICM in 1924 at TorontoPlancherel, Michel (1924) [http://www.mathunion.org/ICM/ICM1924.1/Main/icm1924.1.0619.0622.ocr.pdf " Sur les séries de fonctions orthogonales."] {{Webarchive|url=https://web.archive.org/web/20171203153823/http://www.mathunion.org/ICM/ICM1924.1/Main/icm1924.1.0619.0622.ocr.pdf |date=2017-12-03 }} In Proceedings of the International Mathematical Congress, Toronto, vol. 1, pp. 619–622. and in 1928 at Bologna.
He was married to Cécile Tercier, had nine children, and presided at the Mission Catholique Française in Zürich.
References
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External links
- {{MacTutor Biography|id=Plancherel}}
- [https://web.archive.org/web/20130223073133/http://math.unifr.ch/plancherel.php Short biography], Department of mathematics, University of Fribourg {{in lang|fr}}
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{{DEFAULTSORT:Plancherel, Michel}}
Category:20th-century Swiss mathematicians
Category:Swiss Roman Catholics
Category:Academic staff of ETH Zurich
Category:University of Fribourg alumni
Category:Academic staff of the University of Fribourg
Category:People from the canton of Fribourg
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