Robert de Montessus de Ballore

Robert Fernand Bernard, Viscount de Montessus de Ballore (20 May 1870, Villeurbanne – 26 January 1937, Arcachon) was a French mathematician, known for his work on continued fractions and Padé approximants.[1][2]

Robert de Montessus de Ballore in 1914

Biography

Robert de Montessus was a viscount, born to a noble family originating in the Ancien Régime.

His father Philippe-Georges de Montessus de Ballore (1825–1890) was an officer who was trained at Saint Cyr and then resigned from the army to manage a farm in Charolais.

Robert had three brothers:

  • Fernand de Montessus de Ballore (1851–1923), graduate of l'École polytechnique, seismologist;
  • Jean (1852–1903), a magistrate;
  • Henri (1862–1918), professor of physics at Grenoble.

In 1886, Robert obtained his bachelor of science degree. From 1887 to 1889, he attended preparatory classes at l'École des mines de Saint-Étienne. On 8 May 1905, at the Sorbonne, he successfully defended his thesis on continued fractions, written under the supervision of Paul Appell.[3]

On 29 March 1906, he married Suzanne Montaudon (1884–1983). Their marriage produced four children: Simone (1907–?), Jacques (1909–2003), André (1912–1978) and Geneviève (deceased at birth in 1916).

Robert de Montessus was an editor of the Journal de mathématiques pures et appliquées and the author of numerous mathematical publications. He was a member of the Société mathématique de France and a member of the Société des arts, sciences, belles-lettres et d'agriculture de l'Académie de Mâcon.

Selected publications

References

  1. Le Ferrand, Hervé; Le Ferrand, Martine (2011-06-01). "Deux frères scientifiques de renom : Fernand et Robert de Montessus de Ballore". Bulletin de la Sabix. Société des amis de la Bibliothèque et de l'Histoire de l'École polytechnique: 49–62. ISSN 0989-3059.
  2. « Notes sur la vie et l’œuvre de Robert de Montessus de Ballore » par Hervé Le Ferrand, de l'Institut de Mathématique de Bourgogne, December 2010
  3. Ferrand, Hervé Le (2013). "Robert de Montessus de Ballore's 1902 theorem on algebraic continued fractions: genesis and circulation". arXiv:1307.3669 [math.HO].
  4. Wilson, E. B. (1911). "Review: Leçons élémentaires sur le Calcul des Probabilités par R. de Montessus". Bull. Amer. Math. Soc. 17 (7): 377–378. doi:10.1090/S0002-9904-1911-02091-2.
  5. Carmichael, R. D. (1915). "Review: Calcul numérique par R. de Montessus & R. d'Adhémar". Bull. Amer. Math. Soc. 21 (5): 247. doi:10.1090/S0002-9904-1915-02634-0.
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