Proof step e-8f58f94d7421b40d

preserver_image affine, shift 0 → concludes about basis-map coefficients of Triangle read by rows: T(n,k) = binomial(k,n-k). JSON

Theorem

Affine, reversal and Möbius substitutions (elementary) polytool ?

Lean (RealRooted): Polynomial.Splits.comp_of_degree_le_one

Operation

Image under a real-rootedness preserver

{
  "index_shift": 0,
  "operation": "preserver_image",
  "operator": "{\"shape\":\"affine\",\"slope\":\"1\",\"intercept\":\"-15\"}"
}

Premises

• Triangle read by rows: T(n,k) = binomial(k,n-k). (sequence)
  uses: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-4, 0]

Claims

• { "claim": "real_rooted", "from_index": 0, "region": { "lower": { "closed": false, "value": "11" }, "upper": { "closed": true, "value": "15" } } }
• { "claim": "interlacing", "from_index": 1, "kind": "weak", "orientation": "unordered" }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: preserver_image, SHA-256 b8e3d649d9cb72e400704e99fe40e6d4e04964b23fd0625c3cc51132a7bead14, 19,463 bytes (3,795 compressed); download JSON

Cited by

• n-6e46553533052aa6 (real_rooted)
• n-6e46553533052aa6 (one_signed_coefficients)
• n-6e46553533052aa6 (interlacing)