Sergei Adian

Russian mathematician (1931–2020).

Born January 1st, 1931 in Quşçu.

Died May 5th, 2020 at 89 years old in Moscow. [ref]

Occupations
mathematician
Wikipedia

What would life be worth if there were no death? Who would enjoy the sun if it never rained? Who would yearn for the day if there were no night? Glenn Ringtved