Dr. Olga Ladyzhenskaya was a mathematician born on March 7, 1922. She made important discoveries relating to partial differential equations, including Hilbert’s 19th problem, asking whether the solutions of regular calculus problems are analytic. Also, Ladyzhenskaya worked with fluid dynamics, such as weather forecasting, oceanography, aerodynamics, and cardiovascular science. She was a researcher at St. Petersburg University and also the Steklov Institute of Mathematics. Her research work involved showing how variables relate in time and space. Ladyzhenskaya received her degree from Moscow State University and later her doctorate at Leningrad University. Later in the 1960’s, Ladyzhenskaya published her findings in a book, still cited today in science; although she did not describe the basic mathematical equations, she helped others solve their own equations and problems. While making equations for today’s weather forecasting, the mathematician was viewed as a rebel by the Soviet Union government. In 1990, Ladyzhenskaya became a full member of the Russian Academy of Sciences after being a corresponding member of the organization for nine years. In 2004, Ladyzhenskaya died at the age of 81.

Source:

• https://www.nytimes.com/2004/01/25/world/dr-olga-ladyzhenskaya-81-mathematician.html