Menahem Max Schiffer (24 September 1911, Berlin – 11 November 1997)[1][2]) was a German-born American mathematician who worked in complex analysis, partial differential equations, and mathematical physics.
On the basis of his prior mathematical publications, Schiffer received a master's degree from the Hebrew University of Jerusalem.
[4] In his dissertation on Conformal representation and univalent functions[5] he introduced the "Schiffer variation", a method for handling geometric problems in complex analysis.
[6] In September 1952, he began to teach at Stanford University,[7] along with George Pólya, Charles Loewner, Stefan Bergman, and Gábor Szegő.
Schiffer was a prolific author over his entire career, with 135 publications from the 1930s to the 1990s, including four books and around forty different coauthors.