My research is focused on new methods, approximations and algorithms in computational molecular electronic structure theory, and our work includes contributions to

Full configuration interaction methods and their application in benchmarks, including studies of perturbation theory
Multiconfigurational self-consistent field and multireference configuration interaction methods
Perturbative and coupled-cluster methods for open-shell and strongly-correlated systems
Density-fitting methods
Quasi-diabatic states
Damped long-range intermolecular interactions