What nationality was the Lax pair's namesake?
Peter Lax Peter David Lax (born 1 May 1926) is a Hungarian-born American mathematician working in the areas of pure and applied mathematics. He has made important contributions to integrable systems, fluid dynamics and shock waves, solitonic physics, hyperbolic conservation laws, and mathematical and scientific computing, among other fields. Lax is listed as an ISI highly cited researcher.
Bartlett and Robertson Ethel Bartlett (1896–1978) and Rae Robertson (1893–1956), popularly known as Bartlett and Robertson, were a husband-and-wife classical piano duo who were credited with popularising two-piano music in Europe and the United States in the 1930s and 1940s through their extensive touring, recordings, and radio performances. Of English and Scottish background respectively, Bartlett and Robertson met during their studies at the Royal Academy of Music in London and married in 1921. Although they initially pursued solo careers, they teamed up as duo-pianists in the late 1920s and conducted annual international tours for over two decades. Several major composers of their era wrote duo-piano compositions especially for them, including Sir Arnold Bax, Benjamin Britten, Lennox Berkeley, and the Czech composer Bohuslav Martinů.