Mikhail Samuilovich Livsic (4 July 1917 – 30 March 2007) was a Ukrainian-born Israeli mathematician who specialized in functional analysis.
[1] His father was an associate professor of mathematics who frequented leading Soviet mathematicians in Odessa like Nikolai Chebotaryov, Veniamin Fedorovich Kagan, Mark Krein and Samuil O.
Following the evacuation of the Odessa State University during the Second World War, Livsic received in 1942 in Maikop his Ph.D. on the application of Hermitian operators theory to the generalised moment problem under supervision of Mark Krein.
[4] In 1945, Livsic passed his habilitation thesis on generalisations of von Neumann's extension theory that was evaluated by prominent mathematicians, namely Stefan Banach, Israel Gelfand, Mark Naimark and Plessner at the Steklov Institute of Mathematics.
Livsic could not return directly to the Odessa State University following the dismantling of Krein's school under the accusation of promoting too many Jewish mathematicians.