Georges Reeb

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Georges Reeb
Born(1920-11-12)12 November 1920
Died6 November 1993(1993-11-06) (aged 72)
NationalityFrench
Alma materUniversity of Strasbourg
Known forFoliation
Reeb foliation
Reeb graph
Reeb sphere theorem
Reeb stability theorem
Reeb vector field
AwardsPrize Petit-D'Ormoy (1971)
Scientific career
FieldsMathematics
InstitutionsUniversity of Strasbourg
Thesis Propriétés topologiques des variétés feuilletées  (1948)
Doctoral advisorCharles Ehresmann
Doctoral studentsClaude Godbillon [fr; de]
Jean Martinet [fr; de]

Georges Henri Reeb (12 November 1920 – 6 November 1993) was a French

non-standard analysis
.

Biography

Reeb was born in

German occupation of France.[1]

After the war, he completed his studies and in 1948 he defended his PhD thesis, entitled Propriétés topologiques des variétés feuilletées [Topological properties of foliated manifolds] and supervised by Charles Ehresmann.[2]

In 1952 Reeb was appointed professor at

Université Louis Pasteur in Strasbourg.[1][3]

There, in 1965 he created with

Centre National de la Recherche Scientifique, which he directed between 1967 and 1972.[4]

In 1967 he was President of the Société Mathématique de France[5] and in 1971 he was awarded the Prize Petit d'Ormoy [fr].[1][3]

In 1991 Reeb received an honorary doctorate from

Université de Neuchâtel. He died in 1993 in Strasbourg when he was 72 years old.[1][3]

Research

Mathematical Research Institute of Oberwolfach
in 1949

Reeb was the founder of the topological theory of

diffeomorphic
to , except one, which is a 2-
torus.[6]

One of its first significant result,

holonomy group
.

His works on foliations had also applications in

Milnor spheres
, although not diffeomorphic, are homeomorphic to the sphere .[7]

Other important geometric concepts named after him include the

contact form
.

Towards the end of his career, Reeb become a supporter of the theory of non-standard analysis by Abraham Robinson, coining the slogan "The naïve integers don't fill up "[9][10] and working on its applications to dynamical systems.[11]

Selected works

Books

  • with Wu Wen-Tsün: Sur les espaces fibrés et les variétés feuilletées, 1952[12]
  • with A. Fuchs: Statistiques commentées, 1967
  • with J. Klein: Formules commentées de mathématiques: Programme P.C., 1971
  • Feuilletages: résultats anciens et nouveaux (Painlevé, Hector et Martinet), 1974

Articles

  • "Sur les points singuliers d'une forme de Pfaff complètement intégrable ou d'une fonction numérique". C. R. Acad. Sci. Paris. 222: 847–849. 1946.
  • "Variétés feuilletées, feuilles voisines". C. R. Acad. Sci. 224. Paris: 1613–1614. 1947.
  • "Sur certaines propriétés topologiques des variétés feuilletées". Actualités Sci. Ind., Publ. Inst. Math. Univ. Strasbourg. 11 (1183). Paris: Hermann & Cie.: 5–89, 155–156 1952.
  • with André Haefliger: "Variétés (non séparées) à une dimension et structures feuilletées du plan". Enseignement Math. 2 (3): 107–125. 1957.

See also

References

  1. ^
    MacTutor History of Mathematics archive. University of St Andrews
    . Retrieved 2020-02-10 – via st-andrews.ac.uk.
  2. ^ "Georges Reeb - The Mathematics Genealogy Project". genealogy.math.ndsu.nodak.edu. Retrieved 2022-04-02.
  3. ^ a b c Diener, Francine (October 1993). "George Reeb (1920-1993)". Gazette des mathématiciens [fr] (in French). 58: 3.
  4. ^ "Some historical facts". u-strasbg.fr. Institute for Advanced Mathematical Research, University of Strasbourg. Archived from the original on 2013-10-02. Retrieved 2020-02-10.
  5. ^ "Liste anciens présidents | Société Mathématique de France". smf.emath.fr. Retrieved 2022-04-02.
  6. Notices of the AMS. American Mathematical Society
    (published online 2008). Retrieved 2020-02-10 – via AMS.org.
  7. .
  8. .
  9. ^ Nonstandard Analysis in Practice, p. 4, at Google Books. Edited by Francine Diener, Marc Diener.
  10. ^ Nelson, Edward (1995). "Ramified recursion and intuitionism" (PDF). Presented to Colloque Trajectorien: à la mémoire de Georges Reeb et Jean-Louis Callot. Strasbourg/Obernai.
  11. OCLC 300057457
    .
  12. .