Parallelogram substring scale: Difference between revisions
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== Open problems == | == Open problems == | ||
# Classify all MOS-substitution parallelogram substring scales. | # Classify all MOS-substitution parallelogram substring scales. | ||
# Classify all ternary parallelogram substring scales. Conjecture: All ternary parallelogram substring scales are MOS substitution scales. | # Classify all ternary parallelogram substring scales. <s>Conjecture: All ternary parallelogram substring scales are MOS substitution scales.</s> (Numerous counterexamples, e.g. LLmLmLmLmLLs) | ||
# Classify all ternary full parallelogram scales (PS with full first and last rows). | # Classify all ternary full parallelogram scales (PS with full first and last rows). | ||
[[Category:Pages with open problems]] | [[Category:Pages with open problems]] | ||