Proof step e-9a46600ceb40809a

basis_map A013609 → concludes about basis_map_A013609 of Triangle read by rows: T(n,k) are the coefficients of Charlier polynomials: A046716 transposed, for 0 <= k <= n. JSON

Theorem

Geometric basis map (elementary) polytool ?

Operation

Image under a basis map u^k -> P_k

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

Premises

• Triangle read by rows: T(n,k) are the coefficients of Charlier polynomials: A046716 transposed, for 0 <= k <= n. (sequence)
  uses: Every row P_n, n >= 1, is zero or real-rooted with all roots in (-inf, 0]

Claims

• { "claim": "real_rooted", "from_index": 1, "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 b2a62bdb75077f10c96d5a6333fb4e0720064c3cf66ccb947f1e52b194898299, 13,430 bytes (2,541 compressed); download JSON

Cited by

• n-b11b90d367f09b77 (real_rooted)
• n-b11b90d367f09b77 (one_signed_coefficients)
• n-b11b90d367f09b77 (hadamard_kernel)
• n-b11b90d367f09b77 (interlacing)