Rotation Number
Robert P. Munafo, 1999 Feb 2.
At a branch point, the several filaments that meet are distinguished by their rotation number. The rotation number is an integer N from 1 to the number of branches. Sometimes it is expressed as a fraction N/D, where D is the number of branches. Rotation numbers are used in some of the R2 system operators; see R2 rules.
Rotation number is also a synonym for internal angle, so used by Prof. Devaney and others. See the Internal Angle entry for a complete description.
From the Mandelbrot Set Glossary and Encyclopedia, by Robert Munafo. Mu-ency index
Robert Munafo's home pages on HostMDS (c) 1996-2010 Robert P. Munafo. about contact
This work is licensed under a Creative Commons Attribution 2.5
License. Details here
s.13