Proof step
Geometric basis map (elementary)
Image under a basis map u^k -> P_k A013611
- Concludes
- basis_map_A013611 of veronese_section_2_1 of basis-map coefficients of Riordan array (1+2x,x(1+x)). shifted by x -> -x + 0
- Premises
- veronese_section_2_1 of basis-map coefficients of Riordan array (1+2x,x(1+x)). shifted by x -> -x + 0
sequence: Every row P_n, n >= 0, is zero or real-rooted with all roots in (-inf, 0]
- veronese_section_2_1 of basis-map coefficients of Riordan array (1+2x,x(1+x)). shifted by x -> -x + 0
- Theorem
- polytool ?
- Checked
- polytool replayed · Lean not attempted
Technical details
- Step id
e-0a0f2f8766a64d27· JSON- Operation
- Image under a basis map u^k -> P_k
{ "map": "A013611", "operation": "basis_map" } - Claims
{ "claim": "real_rooted", "from_index": 0, "region": { "upper": { "closed": true, "value": "0" } } }{ "claim": "interlacing", "from_index": 2, "kind": "weak", "orientation": "unordered" }- Certificate
basis_map, SHA-256f479120d4ad19346ed476deac082e1bb329c23af5be00290437ad03647c162c5, 15,333 bytes (3,075 compressed); downloadpolytool replayed the certificate when the step was written.- Cited by
n-d78f99cf1ffbcb41(real_rooted)n-d78f99cf1ffbcb41(one_signed_coefficients)n-d78f99cf1ffbcb41(hadamard_kernel)n-d78f99cf1ffbcb41(interlacing)