Proof step e-a70bef035c61e98a

basis_map A013611 → concludes about basis_map_A013611 of Triangle read by rows. T(n, k) = binomial(n, k)*binomial(n - 1, n - k - 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(n, k)*binomial(n - 1, n - k - 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": 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 67d8aaa6b845f3b731853a1a44c4ea9b96db6a49de193bbcd092af066f8d8e89, 14,566 bytes (2,761 compressed); download JSON

Cited by

• n-b8e11e765570cb44 (real_rooted)
• n-b8e11e765570cb44 (one_signed_coefficients)
• n-b8e11e765570cb44 (hadamard_kernel)
• n-b8e11e765570cb44 (interlacing)