Complex sentence: Yury Sergeevich Osipov (Russian: Юрий Сергевич Осипов, born in 1936) is a prominent Soviet and Russian mathematician, full member and the president of the Russian Academy of Sciences.
Split into simpler sentences: Yury Sergeevich Osipov (Russian: Юрий Сергевич Осипов, born in 1936) is a prominent Soviet and Russian mathematician. He is a full member and the president of the Russian Academy of Sciences.