Which mathematician was born first, Pyotr Novikov or Dmitri Egorov?
Pyotr Novikov Pyotr Sergeyevich Novikov (Russian: Пётр Серге́евич Но́виков ; 15 August 1901, Moscow, Russian Empire – 9 January 1975, Moscow, Soviet Union) was a Soviet mathematician.
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.