Mischa Cotlar, Ukrainian-born Argentine mathematician (Sarny, Rivne Oblast Province 01 August 1913 – Buenos Aires 16 January 2007) His father, Ovsey Cotlar (1879-1952) is rembered in Lasker-Cotlar variant (chess)
ACHIEVEMENTS Enunciated the transfer principle in modern ergodic theory and ergodic Hilbert transform (1955)
Introduced the notion of quasi-orthogonality
Introduced quasi-orthogonal lemma for self-adjoint operators known as Cotlar-Stein lemma (1955)
With C. Sadosky introduced the concept of generalized Toeplitz kernels (1979) and the notion of algebraic scattering systems (1987)
Introduced the notion of “total”
EPONYMY Cotlar theorem Cotlar-Sadosky lifting theorem (1979) Cotlar-Sadosky extension theorem Cotlar-Sadosky algebraic scattering systems Cotlar inequalitiesToeplitz-Krein-Cotlar triplets Cotlar decomposition
LINKS http://www.emis.de/journals/BAMV/conten/vol1/vol1N1p75-83.pdf (in Spanish; contains bibliography) |
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