Proof step e-4ea4473fb62add47

basis_map A013609 → concludes about basis_map_A013609 of Square array of Delannoy numbers D(i,j) (i >= 0, j >= 0) read by antidiagonals. JSON

Theorem

Geometric basis map (elementary) polytool ?

Operation

Image under a basis map u^k -> P_k

{
  "map": "A013609",
  "operation": "basis_map"
}

Premises

• Square array of Delannoy numbers D(i,j) (i >= 0, j >= 0) read by antidiagonals. (sequence)
  uses: Every row P_n, n >= 1, is zero or real-rooted with all roots in (-inf, 0]

Claims

• { "claim": "real_rooted", "from_index": 1, "region": { "upper": { "closed": true, "value": "0" } } }
• { "claim": "interlacing", "from_index": 2, "kind": "weak", "orientation": "unordered" }

Verification and certificate

• polytool: replayed (the certificate replayed when the step was written)
• Lean: not attempted
• certificate: basis_map, SHA-256 0c50e1809b59028358186f81b48d7f638d0ede57a8eb6f8dca97c7a76af93679, 14,011 bytes (2,704 compressed); download JSON

Cited by

• n-4b9af074c19fbdaf (interlacing)
• n-4b9af074c19fbdaf (real_rooted)
• n-4b9af074c19fbdaf (one_signed_coefficients)
• n-4b9af074c19fbdaf (hadamard_kernel)