Robert P. Munafo, 2002 May 6.
Name used by most of the mathematicians for mu-atom, probably because it is a more general name for any region in any parameter plane whose members have iteration dynamics with hyperbolic properties.
From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo, (c) 1987-2017. Mu-ency index
This page was written in the "embarrassingly readable" markup language RHTF, and was last updated on 2017 Feb 02. s.11