On the Lebesgue constant of subperiodic trigonometric interpolation

Autor: Gaspare Da Fies, Marco Vianello
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Popis: We solve a recent conjecture, proving that the Lebesgue constant of Chebyshev-like angular nodes for trigonometric interpolation on a subinterval [[email protected],@w] of the full period [[email protected],@p] is attained at +/[email protected], and its value is independent of @w and coincides with the Lebesgue constant of algebraic interpolation at the classical Chebyshev nodes in (-1,1).
Databáze: OpenAIRE