Prof. em. Dr. Werner Balser

Research interests

Ordinary and partial differential equations, in particular

  • Analytic theory, formal power series solutions, multisummability
  • Singular perturbation of ordinary differential equations
  • The solutions, Stokes matrices, and central connection coefficients of the confluent hypergeometric system
  • Abstract Cauchy problems for unbounded operators in a Banach space
  • Birkhoff's reduction problem


  • Prof. Dr. Werner Balser
  • Institute of Applied Analysis
  • University of Ulm
  • 89069 Ulm, Germany