Proof step e-89c2003f0322b0b4

basis_map A013609 → concludes about basis_map_A013609 of Pascal-(1,2,1) array read by antidiagonals. JSON

Theorem

Geometric basis map (elementary) polytool ?

Operation

Image under a basis map u^k -> P_k

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

Premises

• Pascal-(1,2,1) array read by 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": 1, "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 3bc8069941af074812115d7cc6c09cc926d9beca488bcc7c438be8efb2274bda, 14,011 bytes (2,706 compressed); download JSON

Cited by

• n-37ca9f2607503703 (real_rooted)
• n-37ca9f2607503703 (one_signed_coefficients)
• n-37ca9f2607503703 (hadamard_kernel)
• n-37ca9f2607503703 (interlacing)