Proof step e-c48c00981e95a888

basis_map A013609 → concludes about basis_map_A013609 of Square array A(n,r), the number of neighbors at a sharp Manhattan distance r in a finite n-hypercube lattice, read by upwards antidiagonal… JSON

Theorem

Geometric basis map (elementary) polytool ?

Operation

Image under a basis map u^k -> P_k

{
  "map": "A013609",
  "operation": "basis_map"
}

Premises

• Square array A(n,r), the number of neighbors at a sharp Manhattan distance r in a finite n-hypercube lattice, read by upwards antidiagonals… (sequence)
  uses: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 0]

Claims

• { "claim": "real_rooted", "from_index": 0, "region": { "upper": { "closed": true, "value": "0" } } }
• { "claim": "interlacing", "from_index": 2, "kind": "weak", "orientation": "unordered" }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: basis_map, SHA-256 b6ce81e4cc50c661cbef9326f1bbc5212d2d7eaa5920c44fdf30fcf4e6f22c52, 14,305 bytes (2,784 compressed); download JSON

Cited by

• n-45d316ccbe3d57d1 (real_rooted)
• n-45d316ccbe3d57d1 (one_signed_coefficients)
• n-45d316ccbe3d57d1 (hadamard_kernel)
• n-45d316ccbe3d57d1 (interlacing)