Proof step e-0ffa0091fcab81ab

preserver_image affine, shift 0 → concludes about basis-map coefficients of A Jacobsthal triangle. 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

• A Jacobsthal triangle. (sequence)
  uses: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-8, 0]

Claims

• { "claim": "real_rooted", "from_index": 0, "region": { "lower": { "closed": false, "value": "7" }, "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 153c54ccef4e20ed190328467702461c9045d27b9b3839b2bfe2a22b92fb1371, 19,370 bytes (3,774 compressed); download JSON

Cited by

• n-eb460955a5ddb26b (real_rooted)
• n-eb460955a5ddb26b (one_signed_coefficients)
• n-eb460955a5ddb26b (interlacing)