Proof step

Affine, reversal and Möbius substitutions (elementary)

Image under a real-rootedness preserver reversal, shift 0

Concludes

A127733 * A007318 as infinite lower triangular matrices.

Premises

A127733 * A007318 as infinite lower triangular matrices.
sequence: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 0]

Theorem

polytool ?

Lean

RealRooted route reversed RealRooted.X_pow_mul_reverse_eq_zero_or_splits, RealRooted.reflect_eq_zero_or_splits

Checked

polytool replayed · Lean not attempted

Technical details

Step id

e-2066203fd3f8a31c · JSON

Operation

Image under a real-rootedness preserver

{
  "index_shift": 0,
  "operation": "preserver_image",
  "operator": "{\"shape\":\"reversal\",\"schedule\":{\"first_index\":0,\"first_degree\":0,\"step\":1}}"
}

Claims

{
  "claim": "real_rooted",
  "from_index": 0,
  "region": {
    "upper": {
      "closed": true,
      "value": "0"
    }
  }
}

Certificate

preserver_image, SHA-256 977f8cd3cd1eeea285c0b2af8b95e86e61d79fc4ae4c260bef82282a7e61de99, 12,053 bytes (3,198 compressed); download

polytool replayed the certificate when the step was written.

Cited by

n-375ba152c4aebf61 (real_rooted)
n-375ba152c4aebf61 (one_signed_coefficients)
n-375ba152c4aebf61 (hadamard_kernel)