Pictures on the cover were created by Jordi Vives Nebot
(Dept. de Fisica Fonamental, Universitat de Barcelona, Diagonal 647, E-08028,
Barcelona, Spain). They represent sections x + ye12 +
ze1 of two Julia-type 3-dimensional Clifford fractals
viewed from an isometric perspective. Each image is a result of 10
iterations of the map c -> c2 + b, where c and b are elements
of the Clifford algebra Clp,q, p+q=2. Convergence
of the resulting sequences of Clifford elements was determined by using
a spinorial norm (the scalar part of the Clifford number times it Clifford-conjugate).
The following metrics and base points b have been used to create these
images:
-
Plane Fractal: b= -0.152815 + 0.656528e12 in Cl2,0;
-
Quaternionic Fractal: b= -0.152815 + 0.5e1 + 0.656528e12
in Cl0,2.
Last revised: Feb 14, 2002
