Contents of Ulmer Seminare Volume 4, 1999

• W. Arendt:
  Different domains induce different heat semigroups on C₀(Ω).
• W. Arendt:
  Resolvent positive operators and inhomogeneous boundary conditions.
• W. Arendt, B. de Pagter:
  Spectrum and asymptotics of the Black-Scholes partial differential equation in (L¹, L^∞)-interpolation spaces.
• W. Balser, D. Lutz, R. Schäfke:
  On the convergence of Borel approximants.
• A. Batkai, S. Piazzera:
  Damped wave equations with delay.
• C. J. K. Batty, M. Blake:
  Convergence of Laplace integrals.
• C. J. K. Batty, R. Chill, Y. Tomilov:
  Strong stability of bounded evolution families and semigroups.
• C. J. K. Batty, S. B. Yeates:
  Weighted and local stability of semigroups of operators.
• A. Bolibruch:
  Elementary proof of the Birkhoff-Grothendieck theorem with parameters.
• R. Chill, J. Prüss:
  Asymptotic behaviour of evolutionary integral equations.
• I. Fahrner, U. Stadtmüller:
  Strong approximation of maxima by extremal processes.
• G. Gripenberg, Ph. Clément, S.-O. Londen:
  Smoothness in fractional evolution equations and conservation laws.
• G. Gühring, F. Räbiger:
  Asymptotic properties of mild solutions of nonautonomous evolution equations with applications to retarded differential equations.
• K. Hawlitschek:
  Greensche Funktionen für Diffusionsprozesse mit beweglichen Rändern.
• P. Imkeller, Ch. Lederer:
  Some formulas for Lyuapunov exponents and rotation numbers in two dimensions and the stability of the harmonic oscillator and the inverted pendulum.
• N. J. Kalton, G. Lancien:
  L^p-maximal regularity on Banach spaces with a Schauder basis.
• S. Karrmann:
  Gaussian estimates for second order operators with unbounded coefficients.
• W. Kratz:
  Elementare Potentialtheorie.
• G. Metafune:
  L^p-spectrum of Ornstein-Uhlenbeck operators.
• W. Ricker:
  The spectral theorem: a historical viewpoint.
• S. Schweiker:
  Maximal L^p-regularity of second order differential equations on the line.