Proof step e-36be6b9e5c42de00

basis_map A013611 → concludes about basis_map_A013611 of Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1). JSON

Theorem

Geometric basis map (elementary) polytool ?

Operation

Image under a basis map u^k -> P_k

{
  "map": "A013611",
  "operation": "basis_map"
}

Premises

• Triangle read by rows: T(n,k) = binomial(2n+1, 2k+1). (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 b7023aa18459124ed0c07047c69a31b9a93ed20f18ea53bf590a1bb00fd0ddd8, 13,636 bytes (2,585 compressed); download JSON

Cited by

• n-ff36538314ab71f5 (one_signed_coefficients)
• n-ff36538314ab71f5 (hadamard_kernel)
• n-ff36538314ab71f5 (interlacing)
• n-ff36538314ab71f5 (real_rooted)