March 07, 2010 <Back to Index>
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Olga
Alexandrovna Ladyzhenskaya was born on March 7, 1922, in the town of
Kologrive, in a family of old Russian nobility. Her father Alexander
Ivanovich Ladyzhenski was teaching mathematics at the local school. He
transmitted his passion for mathematics not only to his students but
also to his daughter Olga Alexandrovna who from early childhood showed
a strong talent for logical thinking. In 1939 she was admitted to the
Leningrad Teachers' Training College and from 1941 to 1943 she taught
mathematics to the senior classes at Kologrive Secondary School. From
1943 to 1947 she then studied mathematics at the University of Moscow.
Among her teachers in Moscow were Gel'fand, Petrovskii, Sobolev, and
Tikhonov. In 1947 she graduated with the highest distinction; her
thesis advisor was I.G.Petrovskii. In the same year she married Andrei
Alexevich Kiselev, also a mathematician who taught history of
mathematics at Leningrad State University, and returned to
Leningrad/St. Petersburg to continue her studies at the University of
Leningrad. Here she also was influenced by Smirnov. She completed her
Ph. D. in 1949 with a thesis supervised by Sobolev, and, in the spring
of 1953, at Moscow State University, she handed in her thesis for the
D. Sc. degree, comparable to the German "Habilitation". Finally, in
1954 she was appointed Professor at Leningrad University and in 1961
she became director of the Laboratory of Mathematical Physics at
Steklov Institute (Leningrad branch) where her mathematical successes
soon brought her wide recognition, both in the Soviet Union and abroad. From an account of A. D.
Alexandrov, A. P. Oskolkov, N. N. Ural'tseva, and L. D. Faddeev on
the occasion of her 60th birthday. We get the impression of an
uneventful youth passed in rural tranquility and economic security in
the family of a state official and a mathematical gift whose full
potential became apparent only rather late. However, the truth is
very far from this, and it could only be told after communist rule of
Russia had ended. Those were difficult days for a descendent of the
Russian noble class. In 1937, Professor Ladyzhenskaya's father was
arrested by Stalin's men. In fact, as Alexander Solschenizyn recalls in
his epic account of the "Gulag", Alexander I. Ladyzhenski had been
warned by a peasant that his name was in "their" lists; but he stayed,
he would not leave the students who depended on him. In a show trial he was convicted as an "enemy of the Russian
people" and sentenced to death. Olga Alexandrovna was
lucky enough to be allowed to finish high school–unlike her two older
sisters who were expelled. In 1939 she passed the entrance examinations
to study at prestigious Leningrad University, at that time the best
University in the Soviet Union; however, as the daughter of a "class
enemy" she was not admitted. When she finally was allowed to enter
Moscow University in 1943, it was only because the mother of one of her
students was able to use personal contacts in her favor. Although she
had completed her second thesis as early as 1951 she was not allowed to
defend her thesis before 1953, after Stalin's death. There is
only one explanation why inspite of such adversity, Ladyzhenskaya was able to rise to the top of the renowned Steklov Institute
and to become the uncontested head of the Leningrad school of
mathematics, and this is her work. Professor Ladyzhenskaya has
written more than 250 mathematical papers; her work covers the whole
spectrum of partial differential equations, ranging from hyperbolic
equations to differential equations generated by symmetric functions of
the eigenvalues of the Hessian, and discussing topics ranging from
uniqueness to convergence of Fourier series or finite-difference
approximation of solutions. She developed the functional analytic
treatment of nonlinear stationary problems by Leray-Schauder degree
theory and pioneered the theory of attractors for dissipative
equations. She is the author of three monographs that have greatly
influenced the development of the field of partial differential
equations throughout the second half of the last century. With
her impressive mathematical achievements, helped by her cultured and
charming personality, Professor Ladyzhenskaya has attracted a large
number of excellent students to work with her at the Laboratory of
Mathematical Physics of Steklov Institute and at Leningrad University,
among them Solonnikov, Golovkin, Rivkind, Ivanov; her Ph. D. students
include L. Faddev and N. Ural'tseva. Professor Ladyzhenskaya
already was famous for her work worldwide when, in 1981, she was
elected member of the Russian Academy of Science. She also is foreign
member of numerous academies abroad, among them the Leopoldina, the
oldest German academy. Until 1998 she was President of the Mathematical
Society of St. Petersburg, thus a successor of Leonhard Euler in this
office. The year 1989 brought about the end of communist rule and a turn towards democracy and market economy in Russia. Russian mathematicians were allowed to travel more freely; some of them were able to visit Western countries for the first time. At the same time their economic situation deteriorated. Thus we can easily sympathize with those scientists, among them many leading Russian mathematicians, who accepted offers from abroad and left their country to find more favorable working conditions and a secure future for their families elsewhere. Professor Ladyzhenskaya, however, stayed and helped steer the Steklov Institute through these years of economic change and foster the careers of her coworkers there, thus remaining faithful to the legacy of her father. She only retired officially from her position at Steklov Institute in 2000. |