What nationality was the Lax pair's namesake?
Lax pair In mathematics, in the theory of integrable systems, a Lax pair is a pair of time-dependent matrices or operators that satisfy a corresponding differential equation, called the "Lax equation". Lax pairs were introduced by Peter Lax to discuss solitons in continuous media. The inverse scattering transform makes use of the Lax equations to solve such systems.
Axel and Eigil Axgil Axel Axgil (3 April 1915 – 29 October 2011) and Eigil Axgil (24 April 1922 – 22 September 1995) were Danish gay activists and a longtime couple. They were the first gay couple to enter into a registered partnership anywhere in the world following Denmark's legalisation of same-sex partnership registration in 1989, a landmark legislation which they were instrumental in bringing about. They adopted the shared surname, Axgil, a combination of their given names, as an expression of their commitment.