Proof step

Affine, reversal and Möbius substitutions (elementary)

Image under a real-rootedness preserver mobius, shift 0

Concludes

mobius_x_over_x_plus_one of Triangle related to the asymptotic expansion of E(x,m=3,n).

Premises

Triangle related to the asymptotic expansion of E(x,m=3,n).
sequence: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 0]

Theorem

polytool ?

Lean

RealRooted route fTransform RealRooted.splits_fPolynomial

Checked

polytool replayed · Lean not attempted

Technical details

Step id

e-9ea310aace5b454f · JSON

Operation

Image under a real-rootedness preserver

{
  "index_shift": 0,
  "operation": "preserver_image",
  "operator": "{\"shape\":\"mobius\",\"a\":\"1\",\"b\":\"0\",\"c\":\"1\",\"e\":\"1\",\"schedule\":{\"first_index\":0,\"first_degree\":0,\"step\":1}}"
}

Claims

{
  "claim": "real_rooted",
  "from_index": 0,
  "region": {
    "lower": {
      "closed": true,
      "value": "-1"
    },
    "upper": {
      "closed": true,
      "value": "0"
    }
  }
}

Certificate

preserver_image, SHA-256 69fcfbdd1e032231b39f1f53b2719ec83101f16856f749a3a674d0cf62c390cc, 8,967 bytes (2,331 compressed); download

polytool replayed the certificate when the step was written.

Cited by

n-f8ee6a8fe89b99a4 (real_rooted)
n-f8ee6a8fe89b99a4 (one_signed_coefficients)
n-f8ee6a8fe89b99a4 (hadamard_kernel)