Which mathematician was born first, Pyotr Novikov or Dmitri Egorov?
Dmitri Egorov Dmitri Fyodorovich Egorov (Russian: Дми́трий Фёдорович Его́ров ; December 22, 1869 – September 10, 1931) was a Russian and Soviet mathematician known for significant contributions to the areas of differential geometry and mathematical analysis. He was President of the Moscow Mathematical Society (1923 — 1930).
Nikolai Pylchykov Nikolai Dmitrievich Pilchikov (Russian: Николай Дмитриевич Пильчиков , 2 April 1857, Kharkov, Russian Empire – 19 May 1908, Kharkov, Russian Empire) was a Russian physicist, inventor, and geologist. He is known for the discovery of the photovoltaic effect, new properties of X-rays, and ways to control various mechanisms of the radio provided a basis of radio control.