Office: S2|15 /422
Phone: +49 (0)6151 16-3187
Email: haller [at] mathematik.tu-darmstadt.de

Research Interests

• Regularity theory for elliptic and parabolic PDEs
  • Maximal parabolic regularity
  • Divergence form operators with mixed boundary conditions
  • Non-smooth coefficients and domains
  • Transmission problems on polyhedral domains
  • Quasi-linear parabolic equations
  • Ornstein-Uhlenbeck operators
  • Kernel estimates, especially Gaussian and Poisson bounds
• Operator theory
  • Sectorial operators in Banach spaces
  • H^oo-functional calculus
  • R-bounded operator families
  • Sums and products, theorems of Dore-Venni type
• Operator semigroups
• Harmonic analysis
• Spectral theory

Teaching

Publications