Claude Ambrose Rogers

For the English artist, see Claude Rogers (artist).
Claude Ambrose Rogers

Claude Ambrose Rogers in 1976
Born (1920-11-01)November 1, 1920
Died December 5, 2005(2005-12-05) (aged 85)
Thesis The Transformation of Sequences by Matrices (1949)
Doctoral advisor Lancelot Stephen Bosanquet[1]
Doctoral students
  • Geoffrey Butler[1]
  • Richard Gardner[1]
  • Keith Hirst[1]
  • Richard Holmes[1]
  • David Larman[1]
  • Irene Moore[1]
  • Adam Ostaszewski[1]
  • Richard Thomas[1]
Notable awards FRS[2]
Spouse Joan North

Claude Ambrose Rogers FRS[2] (1 November 1920 – 5 December 2005) was an English mathematician who worked in analysis and geometry.[1][3][4]


Much of his work concerns the theory of normed spaces and convex geometry. [5][6][7][8] In the theory of Banach spaces and summability, he proved the DvoretzkyRogers lemma and the DvoretzkyRogers theorem, both with Aryeh Dvoretzky.[9][10][11][12] He constructed a counterexample to a conjecture related to the Busemann–Petty problem. In the geometry of numbers, the Rogers bound is a bound for dense packings of spheres.

Awards and honours

Rogers was elected a Fellow of the Royal Society (FRS) in 1959. He won the London Mathematical Society's De Morgan Medal in 1977.

Personal life

Rogers was married to children's writer Joan North.


  1. 1 2 3 4 5 6 7 8 9 10 Claude Ambrose Rogers at the Mathematics Genealogy Project
  2. 1 2 Falconer, Kenneth; Gruber, Peter M.; Ostaszewski, Adam; Stuart, Trevor (2015). "Claude Ambrose Rogers 1 November 1920 — 5 December 2005". Biographical Memoirs of Fellows of the Royal Society. 61. doi:10.1098/rsbm.2015.0007. ISSN 0080-4606.
  3. Larman, David, "Ambrose Rogers", L. M. S. Newsletter, Obituary
  4. O'Connor, John J.; Robertson, Edmund F., "Claude Ambrose Rogers", MacTutor History of Mathematics archive, University of St Andrews.
  5. Rogers, C. A. (1964), Packing and covering, Cambridge Tracts in Mathematics and Mathematical Physics, No. 54, Cambridge University Press, ISBN 978-0-521-06121-6, MR 0172183
  6. Rogers, C. A. (1970), Hausdorff measures, Cambridge University Press, ISBN 978-0-521-62491-6, MR 0281862
  7. Rogers, C. Ambrose (1975), "Probabilistic and combinatorial methods in the study of the geometry of Euclidean spaces", Proceedings of the International Congress of Mathematicians (Vancouver, B. C., 1974), Vol. 1, Canad. Math. Congress, Montreal, Que., pp. 497–500, MR 0423192
  8. Jayne, John E.; Rogers, C. Ambrose (2002), Selectors, Princeton University Press, ISBN 978-0-691-09628-5, MR 1915965
  9. Diestel, J. (1984). Sequences and series in Banach spaces. Graduate Texts in Mathematics. 92. Springer-Verlag. ISBN 0-387-90859-5. MR 737004.
  10. Diestel, Joseph; Jarchow, Hans; Tonge, Andrew (1995). Absolutely summing operators. Cambridge University Press. pp. 90–91. ISBN 0-521-43168-9.
  11. Kadets, V. M.; Kadets, M. I. (1991). Rearrangements of series in Banach spaces. Translations of Mathematical Monographs. 86 (Translated by Harold H. McFaden from the Russian-language (Tartu) 1988 ed.). Providence, RI: American Mathematical Society. pp. iv+123. ISBN 0-8218-4546-2. MR 1108619.
  12. Kadets, Mikhail I.; Kadets, Vladimir M. (1997). Series in Banach spaces: Conditional and unconditional convergence. Operator Theory: Advances and Applications. 94 (Translated by Andrei Iacob from the Russian-language ed.). Basel: Birkhäuser Verlag. pp. viii+156. ISBN 3-7643-5401-1. MR 1442255.
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