After this he taught at Kiev Cadet School from 1855 to 1862, receiving his Master's Degree in 1862 for a dissertation on the operational method and its application to solving linear differential equations .
Pagkatapos na ito siya nagtuturo sa Kiev kadete School 1855-1862, tumatanggap ng kanyang Master's Degree sa 1862 para sa isang disertasyon sa operational method at ang application sa solving sa guhit kaugalian equation.