Aleksandr Danilovich Aleksandrov

Aleksandr Danilovich Aleksandrov

Aleksandr Danilovich Aleksandrov ( _ru. "Алекса́ндр Дани́лович Алекса́ндров", alternative transliterations: "Alexandr" or "Alexander" (first name), and "Alexandrov" (last name)) (August 4, 1912–July 27, 1999), was a Soviet/Russian mathematician, physicist, philosopher and mountaineer.

Scientific career

Aleksandrov graduated from the Department of Physics of Leningrad State University. His advisors therewere Vladimir Fok, a physicist, and Boris Delaunay, a mathematician. In 1933 Aleksandrov worked at the State Optical Institute (GOI) and at the same time gave lectures at the Department of Mathematics and Mechanics of the University. He completed his Ph.D. in 1935 at the University and later in 1937 — a D.Sc. dissertation. He became a professor at the University, while also working at LOMI, the Leningrad Department of the Steklov Mathematical Institute (now PDMI, Petersburg Department of the Mathematical Institute). Appointed the rector of the university in 1952, Aleksandrov remained in this position until 1964. In 1946 he became a corresponding member, and in 1964 — a full member of the USSR Academy of Sciences. Since 1975 he was also a member of the Italian National Academy.

Since 1964 and until 1986 Aleksandrov lived in Novosibirsk, heading the Laboratory of Geometry of the Institute of Mathematics of the Siberian Division of the USSR Academy of Sciences, teaching at Novosibirsk State University. In 1986 he returned to Leningrad (now Saint Petersburg), to head the geometry laboratory at LOMI.

Awards

Partial list of the awards, medals, and prizes of Aleksandrov:
* USSR State Prize (Stalin Prize, "Stalinskaya Premiya") (1942)
* Lobachevsky International Prize (1951)
* Euler Gold Medal of the Russian Academy of Sciences (1992)One of many orders that he was awarded was given to him in 1990 for his active defense of genetics during the period when it was declared a pseudoscience in the Soviet union and fought against (see Lysenkoism).

Works by Aleksandrov

Aleksandrov wrote a multitude of books, scientific papers, textbooks for various levels (schools to universities). He also wrote non-mathematical papers, memoirs about famous scientists, and philosophical essays dealing with the moral values of science.

A full bibliography is available in [#References| [1] ] . Selected works are available in English:

* Alexandrov, A.D. Selected works. Part 1: Selected scientific papers. Amsterdam: Gordon and Breach Publishers. x, 322 p. (1996). ISBN 2-88124-984-1

* Alexandrov, A.D. Selected works. Intrinsic geometry of convex surfaces. Vol. 2. Boca Raton, FL: Chapman & Hall/CRC. xiii, 426 p. (2005). ISBN 0-415-29802-4

* Alexandrov, A.D. Convex polyhedra. Springer: Berlin. xi, 539 p. (2005). ISBN 3-540-23158-7

Students of Aleksandrov

* I. Liberman, S. Olovianishnikoff, P. Kostelyanetz — all the three of them died on the battlefields of the Great patriotic war
* A. Pogorelov — from Kharkov
* A. Yusupov — from Bukhara
* Students from the Aleksandrov Leningrad period (ordered by the time of joining the seminars): Yu. Borisov, V. Zalgaller, Yu. Reshetnyak, I. Bakelman, Yu. Volkov, A. Zamorzaev, S. Bogacheva (who later married Aleksandrov), Yu. Borovskii, R. Pimenov
* Sobchuk and Starokhozyayev — from Ukraine
* G. Rusiyeshvili — from Georgia (country)
* B. Frank and H. Frank — from Germany
* Yu. Burago, V. Kreinovich
* Moved from Alma-Ata after Aleksandrov's lecture tour there: M. Kvachko, V. Ovchinnikova, E. Sen'kin
* Stayed in Alma-Ata: A. Zilberberg, V. Strel'cov, D. Yusupov
* Novosibirsk students: A. Guc, A. Kuz'minykh, A. Levichev, A. Shaydenko

Both in St. Petersburg and in Novosobirsk Aleksandrov was doing joint research also with some of his students' students. Several of them became his co-authors: V. Berestovskii, A. Verner, V. Gol'dshtein, S. Krushkal', S. Kutateladze, N. Necvetaev, I. Nikolaev, V. Ryzhik.

His last Ph.D. student was Grigori Perelman, who in 2002 made a breakthrough in the proof of Thurston's geometrization conjecture, which contains the Poincaré conjecture as a special case.

Mountaineering

Aleksandrov became attracted to alpinism under the influence of his advisor Boris Delaunay. In the summer of 1937, after defending his D.Sc.,:"…together with I. Chashnikov he makes a first climb to the Chotchi summit, and with K. Piskaryov performs a climb of Bu-Ul'gen via the western wall (one of the first wall climbs in the history of the Soviet alpinism).
[…] In 1940 he participates in a record-making traversal […] He manages, almost by a miracle, to stop the fall of A. Gromov, who had fallen along with a snow shelf. It was with this traversal that Aleksandrov completed the alpinist sports master requirements. The Great Patriotic war postponed awarding him this honorary title until 1949.":: (See "A.D. Aleksandrov in the mountains (an alpinist biography)", Savvon S.M., [#References| [1] ] , p.182–183)

During his rectorship, Aleksandrov also advanced the mountaineering sport activities in the university, actively participating in the climbs.

The fiftieth birthday was celebrated by Aleksandrov in the mountains with his friends. On that day he made a solo first climb of an: "…unnamed peak 6222 m (Shakhdarinsk ridge, Pamir), that as he suggested was then named "The peak of the Leningrad university."

During later years Aleksandrov didn't undertake climbs due to health problems, yet he never ceased dreaming of climbs. Finally, in 1982, the year of his seventieth birthday, he, together with K. Tolstov, performs in Tian Shan his last climb, of the Panfilov Peak…":: (same source)

ee also

* CAT("k") space
* Cauchy's theorem

References

# "Академик Александр Данилович Александров. Воспоминания. Публикации. Материалы. "(Academician Aleksandr Danilovich Aleksandrov. Recollections. Publications. Biographical materials, in Russian). Editors: G.M. Idlis and O.A. Ladyzhenskaya. Moscow, "Nauka" publishing house, 2002.
# Yu. F. Borisov, " [http://www.turpion.org/php/paper.phtml?journal_id=rm&paper_id=569 On the 90th anniversary of the birth of A.D. Aleksandrov (1912–1999)] ", "Russ. Math. Surv.", 2002, 57 (5), 1017–1031.
# Yu. F. Borisov, V.A. Zalgaller, S.S. Kutateladze, O.A. Ladyzhenskaya, A.V. Pogorelov, Yu. G. Reshetnyak, " [http://math.ras.ru/UMN/Soderzhanie/?biblio=yes&page=169&abstract=empty&address=nCAFH.AF_ZOVC5F К 90-летию со дня рождения А.Д. Александрова (1912–1999)] ", "Uspekhi Mat. Nauk", 2002, 57 (5), 169–181.
# A.M. Vershik, " [http://www.pdmi.ras.ru/~vershik/B22.pdf Alexander Danilovich as I knew him (in Russian).] ",St. Petersburg University, No. 3-4 (2004), 36-40."

External links

*MacTutor Biography|id=Aleksandrov_Aleksandr (with additional photos)
*MathGenealogy|id=30638 (incomplete students listing as of December 2004)
* [http://www.math.cornell.edu/~connelly/alexandrov.pdf Review of Alexandrov's "Convex Polytopes"] – by R. Connelly, published at the Mathematical Reviews.
* [http://www.mathsoc.spb.ru/pantheon/aleksand/ Alexandr Danilovich Alexandrov] – biography, reminiscences, references (from St. Petersburg Mathematical Society website)

Persondata
NAME = Aleksandrov, Alexandr Denilovich
ALTERNATIVE NAMES =
SHORT DESCRIPTION = Russian mathematician
DATE OF BIRTH = August 4, 1912
PLACE OF BIRTH = Volyn, Ryazan, Russia
DATE OF DEATH = July 27, 1999
PLACE OF DEATH = Russia


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