Сегодня родилась Ладыженская Ольга Александровна
On March 7, 1922 Ladyzhenskaya Olga Aleksandrovna was born. This is an outstanding Soviet female mathematician, an expert in the field of the differential equations. She was an author of more than two hundred scientific works among which there were six monographs. Scientific works of Ladyzhenskaya are widely known abroad and were highly appreciated.