A Short Course on Operator Semigroups

  • Klaus-Jochen Engel
  • Rainer Nagel

Part of the Universitext book series (UTX)

Table of contents

  1. Front Matter
    Pages i-x
  2. Pages 1-33
  3. Pages 205-221
  4. Back Matter
    Pages 222-248

About this book


The book gives a streamlined and systematic introduction to strongly continuous semigroups of bounded linear operators on Banach spaces. It treats the fundamental Hille-Yosida generation theorem as well as perturbation and approximation theorems for generators and semigroups. The special feature is its treatment of spectral theory leading to a detailed qualitative theory for these semigroups. This theory provides a very efficient tool for the study of linear evolution equations arising as partial differential equations, functional differential equations, stochastic differential equations, and others. Therefore, the book is intended for those wanting to learn and apply functional analytic methods to linear time dependent problems arising in theoretical and numerical analysis, stochastics, physics, biology, and other sciences. It should be of interest to graduate students and researchers in these fields.


banach spaces differential equation dynamical systems mathematical analysis operator perturbation perturbation theory spectral theory

Authors and affiliations

  • Klaus-Jochen Engel
    • 1
  • Rainer Nagel
    • 2
  1. 1.Faculty of EngineeringDivision of MathematicsMonteluco di Roio (AQ)Italy
  2. 2.Mathematics InstituteTübingen UniversityTübingenGermany

Bibliographic information