Construction of a 3D SFT with 2-sparse Z-trace that is deterministic in the trace direction, plus Wang-cube and binary-alphabet variants.
Nilpotency and limit sets of cellular automata
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A Three-Dimensional SFT with Sparse Columns
Construction of a 3D SFT with 2-sparse Z-trace that is deterministic in the trace direction, plus Wang-cube and binary-alphabet variants.