Mikhail Ostrogradsky

Mikhail Vasilyevich Ostrogradsky, also known as Mykhailo Vasyliovych Ostrohradskyi, was a Russian Imperial mathematician, mechanician, and physicist of Ukrainian Cossack ancestry. Ostrogradsky was a student of Timofei Osipovsky and is considered to be a disciple of Leonhard Euler, who was known as one of the leading mathematicians of Imperial Russia.