The six-lift and eight-lift trees of Appendix C.1 #
eq:six-lift-tree with the lifts eq:six-lift-coordinates, and eq:eight-lift-tree with the
lifts eq:eight-lift-coordinates (local-ray-restrictions.tex). Each is given as a
table poset with its rays; the factorization checks of lem:tree-quotient enter only through
the retraction conditions on cover relations (Lemma 8.9), as hypotheses X*/Y* naming the
excluded factorizations. Lemma 8.8 then excludes both trees.
The six-lift tree #
v₁ → v₂ → v₃, v₄ → v₅ → v₂, v₆ → v₅ (indices 0, …, 5).
Instances For
The objects.
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The weights.
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The rays.
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The six-lift tree is excluded (eq:six-lift-tree).
The eight-lift tree #
Arms (3,3,1) around v₃ (indices 0, …, 7 for v₁, …, v₈).
Instances For
The objects.
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The weights.
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The rays.
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The eight-lift tree with arms (3,3,1) is excluded (eq:eight-lift-tree).
The proper six-tree eq:proper-six-tree #
B₀ → B₁ → B₂ → B₃, B₁ → Y₊, Y₋ → B₂ (indices 0, …, 3, 4 = Y₊, 5 = Y₋).
Instances For
The objects.
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The weights.
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The rays.
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The proper six-tree is excluded (eq:proper-six-tree).
The complementary-path tree (Appendix C.2, Step 3) #
The objects.
Instances For
The weights.
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The rays.
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The complementary-path tree is excluded (Appendix C.2, Step 3).