Gregor Michalicek is one of the main developers of the Fleur code at the Forschungszentrum Jülich. Besides this general development focus of his work he is also involved in user support and trainings.

During his PhD in Physics he analyzed the linearized augmented-plane-wave basis as it is used in the FLAPW method implemented in Fleur and developed an even more efficient basis. His main interests are the details of the FLAPW method and its application.