Proof step
Affine, reversal and Möbius substitutions (elementary)
Image under a real-rootedness preserver affine, shift 0
- Concludes
- shift_x_plus_one of reversal of Triangle T(n,k), 0 <= k <= n, read by rows, given by [0, 2, -1, 0, 0, 0, 0, 0, ...] DELTA [1, 0, 0, 0, 0, 0, 0, 0, ...] where D…
- Premises
- reversal of Triangle T(n,k), 0 <= k <= n, read by rows, given by [0, 2, -1, 0, 0, 0, 0, 0, ...] DELTA [1, 0, 0, 0, 0, 0, 0, 0, ...] where D…
sequence: Every row P_n, n >= 1, is zero or real-rooted with all roots in (-inf, 0]
- reversal of Triangle T(n,k), 0 <= k <= n, read by rows, given by [0, 2, -1, 0, 0, 0, 0, 0, ...] DELTA [1, 0, 0, 0, 0, 0, 0, 0, ...] where D…
- Theorem
- polytool ?
- Lean
- RealRooted
Polynomial.Splits.comp_of_degree_le_one - Checked
- polytool replayed · Lean not attempted
Technical details
- Step id
e-021a83bf68dcbf48· JSON- Operation
- Image under a real-rootedness preserver
{ "index_shift": 0, "operation": "preserver_image", "operator": "{\"shape\":\"affine\",\"slope\":\"1\",\"intercept\":\"1\"}" } - Claims
{ "claim": "real_rooted", "from_index": 1, "region": { "upper": { "closed": true, "value": "-1" } } }{ "claim": "interlacing", "from_index": 3, "kind": "weak", "orientation": "unordered" }- Certificate
preserver_image, SHA-256642add80822819af17a6c8919620512c72fc39e36b0da920ebc7bfe69d1c6ea7, 22,836 bytes (5,371 compressed); downloadpolytool replayed the certificate when the step was written.- Cited by
n-3a1022cbfb5e5fa3(real_rooted)n-3a1022cbfb5e5fa3(one_signed_coefficients)n-3a1022cbfb5e5fa3(hadamard_kernel)n-3a1022cbfb5e5fa3(interlacing)