Mikhail Semenovich Agranovich
Mikhail Semenovich Agranovich (Russian: Михаил Семенович Агранович; born 4 January 1930) is a Russian mathematician working on partial differential equations who introduced the Agranovich–Dynin formula.
...
Wikipedia
Mikhail Semenovich Agranovich (Russian: Михаил Семенович Агранович; born 4 January 1930) is a Russian mathematician working on partial differential equations who introduced the Agranovich–Dynin formula.