Page "Squeeze mapping" Paragraph 37

Formally, a squeeze preserves the hyperbolic metric expressed in the form ; in a different coordinate system.

This application in the Theory of relativity was noted in 1912 by Wilson and Lewis ( see footnote p. 401 of reference ), by Werner Greub in the 1960s, and in 1985 by Louis Kauffman.

Furthermore, Wolfgang Rindler, in his popular textbook on relativity, used the squeeze mapping form of Lorentz transformations in his demonstration of their characteristic property ( see equation 29. 5 on page 45 of the 1969 edition, or equation 2. 17 on page 37 of the 1977 edition, or equation 2. 16 on page 52 of the 2001 edition ).