Proof step e-56a3ed705651b472

basis_map A013609 → concludes about basis_map_A013609 of Triangle read by rows: T(n,k) = 2^floor(n/2)*binomial(n-1,k-1). 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) = 2^floor(n/2)*binomial(n-1,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" } } }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: basis_map, SHA-256 b2f6387440428439acdd7f56387685b9c3ff2123e51724e47fc8d8a449fffa17, 6,927 bytes (1,411 compressed); download JSON

Cited by

• n-e5e748a2234b1a03 (real_rooted)
• n-e5e748a2234b1a03 (one_signed_coefficients)
• n-e5e748a2234b1a03 (hadamard_kernel)