Proof step e-5d9e378754634336

basis_map A013611 → concludes about basis_map_A013611 of Triangle T(n,k)=Sum_{i=0..n} |stirling1(n,n-i)|*binomial(i,k), k=0..n-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 T(n,k)=Sum_{i=0..n} |stirling1(n,n-i)|*binomial(i,k), k=0..n-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" } } }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: basis_map, SHA-256 a886e10899cdef92e0ffd190128d9de71059df57323867e7a0aa5a54e1e7c862, 7,400 bytes (1,616 compressed); download JSON

Cited by

• n-be7df2e3fd154f3c (real_rooted)
• n-be7df2e3fd154f3c (one_signed_coefficients)
• n-be7df2e3fd154f3c (hadamard_kernel)