Proof step e-a28ac028c491cc22

preserver_image mobius, shift 0 → concludes about Triangle of coefficients in expansion of (3+5x)^n. JSON

Theorem

Affine, reversal and Möbius substitutions (elementary) polytool ?

Lean (RealRooted): route fTransform RealRooted.splits_fPolynomial

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}}"
}

Premises

• Triangle whose (i,j)-th entry is binomial(i,j)*3^(i-j)*2^j. (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": { "lower": { "closed": true, "value": "-1" }, "upper": { "closed": true, "value": "0" } } }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: preserver_image, SHA-256 d021a338b5aba634e42e90f948f936ed932c62a93c1292994a3532ba1a39daab, 8,169 bytes (2,346 compressed); download JSON

Cited by

• n-c44f7114310405ad (one_signed_coefficients)
• n-c44f7114310405ad (hadamard_kernel)
• n-c44f7114310405ad (real_rooted)