Rates of approximation and ergodic limits of regularized operator families

  • Authors:
  • Carlos Lizama;Humberto Prado

  • Affiliations:
  • Departamento de Matemática, Universidad de Santiago de Chile, Casilla 307-Correo 2, Santiago, Chile;Departamento de Matemática, Universidad de Santiago de Chile, Casilla 307-Correo 2, Santiago, Chile

  • Venue:
  • Journal of Approximation Theory
  • Year:
  • 2003

Quantified Score

Hi-index 0.00

Visualization

Abstract

We state mean ergodic theorems with rates of approximation for a new class of operator families. Our result provides a unified approach to convergence rates for many particular strongly continuous solution families associated to linear evolution equations such as the abstract Cauchy problem of the first and second order, and integral Volterra equations of convolution type. We discuss in particular, applications to α-times integrated cosine families, k -convoluted semigroups and integral resolvents.