Proof step e-3f03a2606d2e6662

basis_map A027466 → concludes about Riordan array (1, 2+2x). JSON

Theorem

Geometric basis map (elementary) polytool ?

Operation

Image under a basis map u^k -> P_k

{
  "map": "A027466",
  "operation": "basis_map"
}

Premises

• basis-map coefficients of Riordan array (1, 2+2x). (sequence)
  uses: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 7]

Claims

• { "claim": "real_rooted", "from_index": 0, "region": { "upper": { "closed": true, "value": "0" } } }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: basis_map, SHA-256 3df4567aa9c3e5b24cda202e83d840606920db95130c022d251dc0a5384edae7, 11,679 bytes (2,198 compressed); download JSON

Cited by

• n-f5a001953ee28e8f (one_signed_coefficients)
• n-f5a001953ee28e8f (hadamard_kernel)
• n-f5a001953ee28e8f (real_rooted)