A Zoo of Life forms
Harold V. McIntosh

       Abstract
A catalog is presented, of those Life forms on strips of widths up to six whose translational behavior during a single generation can be inferred from two stages of de Bruijn diagrams.

Departamento de Aplicación de Microcomputadoras, Instituto de Ciencias, Universidad Autónoma de Puebla. October 16, 1988.
This paper is available in PDF (zoo.pdf).

Life's Still Lifes
Harold V. McIntosh

       Abstract
The de Bruijn diagram describing those decompositions of the neighborhoods of a one dimensional cellular automaton which conform to predetermined requirements of periodicity and translational symmetry shows how to construct extended configurations satisfying the same requirements. Similar diagrams, formed by stages, describe higher dimensional automata, although they become more laborious to compute with increasing neighborhood size. The procedure is illustrated by computing some still lifes for Conway's game of Life , a widely known two dimensional cellular automaton.

Departamento de Aplicación de Microcomputadoras, Instituto de Ciencias, Universidad Autónoma de Puebla. September 10, 1988.
This paper is available in PDF (still.pdf).

Phoenix
Harold V. McIntosh

Departamento de Aplicación de Microcomputadoras, Instituto de Ciencias, Universidad Autónoma de Puebla, 1987.
This paper is available in Acrobat PDF (phoall.pdf).

GhtDraw
Harold V. McIntosh

Departamento de Aplicación de Microcomputadoras, Instituto de Ciencias, Universidad Autónoma de Puebla, 1987.
This paper is available in Acrobat PDF (ghtall.pdf).

SvnDraw
Harold V. McIntosh

Departamento de Aplicación de Microcomputadoras, Instituto de Ciencias, Universidad Autónoma de Puebla, 1987.
This paper is available in Acrobat PDF (svnall.pdf).