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The spelling ''Delone'' is a straightforward [[transliteration]] from [[Cyrillic script|Cyrillic]] he often used in recent publications, while ''Delaunay'' is the [[French language|French]] version he used in the early French and [[German language|German]] publications.
The spelling ''Delone'' is a straightforward [[transliteration]] from [[Cyrillic script|Cyrillic]] he often used in recent publications, while ''Delaunay'' is the [[French language|French]] version he used in the early French and [[German language|German]] publications.


Boris Delone got his [[surname]] from his ancestor [[French Army|French Army officer]] De Launay, who was captured in Russia during [[French invasion of Russia (1812)|Napoleon's invasion of 1812]]. De Launay was a nephew of the [[Bastille]] governor [[Bernard-René de Launay|marquis de Launay]], married a woman from the [[Tukhachevsky]] [[noble family]], and stayed in Russia.<ref>[http://www.math.psu.edu/katok_s/Memoirs.html Memoirs] by Boris Rozenfeld, p. 61 (in [[Russian language|Russian]]).</ref>
Boris Delone got his [[surname]] from his ancestor [[French Army|French Army officer]] De Launay, who was captured in Russia during [[French invasion of Russia (1812)|Napoleon's invasion of 1812]]. De Launay was a nephew of the [[Bastille]] governor [[Bernard-René de Launay|marquis de Launay]] and married a woman from the [[Tukhachevsky]] [[noble family]], and stayed in Russia.<ref>[http://www.math.psu.edu/katok_s/Memoirs.html Memoirs] by Boris Rozenfeld, p. 61 (in [[Russian language|Russian]]).</ref>


When Boris was a young boy his family spent summers in the [[Alps]] where he learned [[mountain climbing]].<ref>[http://www.mountain.ru/mkk/pers/delone.shtml Boris Delaunay – Master of mountain climbing]</ref> By 1913, he became one of the top three Russian mountain climbers. After the [[Russian Revolution of 1917|Russian revolution]], he climbed mountains in the [[Caucasus]] and [[Altai Mountains|Altai]]. One of the mountains (4300 m) near [[Belukha Mountain|Belukha]] is named after him. In the 1930s, he was among the first to receive a qualification of Master of mountain climbing of the USSR. Future [[Nobel laureate]] in physics [[Igor Tamm]] was his associate in setting tourist camps in the mountains.
When Boris was a young boy his family spent summers in the [[Alps]] where he learned [[mountain climbing]].<ref>[http://www.mountain.ru/mkk/pers/delone.shtml Boris Delaunay – Master of mountain climbing]</ref> By 1913, he became one of the top three Russian mountain climbers. After the [[Russian Revolution of 1917|Russian revolution]], he climbed mountains in the [[Caucasus]] and [[Altai Mountains|Altai]]. One of the mountains (4300 m) near [[Belukha Mountain|Belukha]] is named after him. In the 1930s, he was among the first to receive a qualification of Master of mountain climbing of the USSR. Future [[Nobel laureate]] in physics [[Igor Tamm]] was his associate in setting tourist camps in the mountains.

Revision as of 11:50, 27 December 2014

Boris Delaunay
Born(1890-03-15)March 15, 1890
Saint Petersburg, Russian Empire
DiedJuly 17, 1980(1980-07-17) (aged 90)
Moscow, Soviet Union
Known forDelaunay triangulation, Mountain climbing
Scientific career
Doctoral advisorDmitry Grave and Georgy Voronoy
Doctoral studentsAleksandr Danilovich Aleksandrov
Igor Shafarevich
Isaak Yaglom

Boris Nikolaevich Delaunay or Delone (Russian: Бори́с Никола́евич Делоне́; March 15, 1890 – July 17, 1980) was one of the first Russian mountain climbers and a Soviet/Russian mathematician, and the father of physicist Nikolai Borisovich Delone.

The spelling Delone is a straightforward transliteration from Cyrillic he often used in recent publications, while Delaunay is the French version he used in the early French and German publications.

Boris Delone got his surname from his ancestor French Army officer De Launay, who was captured in Russia during Napoleon's invasion of 1812. De Launay was a nephew of the Bastille governor marquis de Launay and married a woman from the Tukhachevsky noble family, and stayed in Russia.[1]

When Boris was a young boy his family spent summers in the Alps where he learned mountain climbing.[2] By 1913, he became one of the top three Russian mountain climbers. After the Russian revolution, he climbed mountains in the Caucasus and Altai. One of the mountains (4300 m) near Belukha is named after him. In the 1930s, he was among the first to receive a qualification of Master of mountain climbing of the USSR. Future Nobel laureate in physics Igor Tamm was his associate in setting tourist camps in the mountains.

Boris Delaunay worked in the fields of modern algebra, the geometry of numbers. He used the results of Evgraf Fedorov, Hermann Minkowski, Georgy Voronoy, and others in his development of modern mathematical crystallography and general mathematical model of crystals.[3] He invented what is now called Delaunay triangulation in 1934;[4] Delone sets are also named after him. Among his best students are the mathematicians Aleksandr Aleksandrov and Igor Shafarevich.

Delaunay was elected the corresponding member of the USSR Academy of Sciences in 1929.[5] Delaunay is credited as being an organizer, in Leningrad in 1934, of the first mathematical olympiad for high school students in the Soviet Union.[5][6]

References

  1. ^ Memoirs by Boris Rozenfeld, p. 61 (in Russian).
  2. ^ Boris Delaunay – Master of mountain climbing
  3. ^ Senechal, Marjorie (1995), Quasicrystals and Geometry, Cambridge: Cambridge University Press
  4. ^ Delaunay, Boris (1934), "Sur la sphère vide", Otdelenie Matematicheskikh i Estestvennykh Nauk, vol. 7, pp. 793–800
  5. ^ a b Boris Nikolaevich Deaunay (in Russian), Division of Higher Geometry and Topology, Mathematics and Machanics Department, Moscow State University.
  6. ^ S. S. Ryshkov, D. K. Faddeev and M. I. Shtogrin Boris Nikolaevich Delone (on the occasion of his eightieth birthday). Russian Mathematical Surveys, vol. 26 (1971), pp. 199–203; p. 200

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