Chebyshev U

GPTKB entity

Statements (22)
Predicate Object
gptkbp:instanceOf gptkb:mathematical_concept
orthogonal polynomials
gptkbp:alsoKnownAs Chebyshev polynomial of the second kind
gptkbp:application numerical analysis
approximation theory
spectral methods
gptkbp:definedIn real numbers
gptkbp:degree n
gptkbp:domain [-1,1]
gptkbp:explicitFormula U_n(x) = sin((n+1)arccos(x))/sin(arccos(x))
https://www.w3.org/2000/01/rdf-schema#label Chebyshev U
gptkbp:initialCondition U_0(x) = 1
U_1(x) = 2x
gptkbp:namedAfter gptkb:Pafnuty_Chebyshev
gptkbp:orthogonalWithRespectTo weight function sqrt(1-x^2) on [-1,1]
gptkbp:polynomialFamily gptkb:Chebyshev_polynomials
gptkbp:recurrence U_{n+1}(x) = 2x U_n(x) - U_{n-1}(x)
gptkbp:relatedTo gptkb:Chebyshev_T
gptkbp:sequence A001353
gptkbp:variant x
gptkbp:bfsParent gptkb:Chebyshev_(crater)
gptkbp:bfsLayer 7