Combinatorics / CONCEPT
Radius-Four Column Compression
Deleting the middle of nine empty cyclic columns preserves selected neighborhoods and the external boundary in P(n,4). The symbolic compression argument follows Wenlin Zhang and Haobo Ma.
Closed
DIRECT PREREQUISITES1
DIRECT CONSEQUENCES0
PROOF DEPTH9
DOCUMENT LINKS0
Exact neighborhood and boundary transport
RELATIONSHIP ATLAS
Every connection, in context.
Direct recorded relationships
Proof dependencyStructural affinityDocument link
Certified topology / UPSTREAM
Prerequisites
Certified topology / DOWNSTREAM
Consequences
None recorded in this release.
RELATED KNOWLEDGE
Structural connections
- Every Ten-Vertex Set Has Boundary at Least Eightstructural-affinity · Closed
- Forts and Mask Completenessstructural-affinity · Closed
- Fourteen-Column Words with a Long Gapstructural-affinity · Closed
- From Exceptional Gap Words to Layer Supportsstructural-affinity · Closed
- Ordinary zero forcing, symmetric maximum nullity, and minimum rank of unequal-leg spider powersstructural-affinity · Closed
- The unrestricted grid-power zero-forcing conjecture is falsestructural-affinity · Closed
- The Zero Forcing Number of P(n,3)structural-affinity · Closed
- Zero forcing powers of equal-legged spidersstructural-affinity · Closed
Documents & exposition
None recorded in this release.
Other authored & advisory relationships
None recorded in this release.
LIBRARY / RELEASE VERSIONS
Content history
Loading release versions...
Browse the archiveCertified provenance