These pages contain mainly details about my scientific work. You may be interested in my publications [as pdf] or in my research interests. There are also contact details and a list of people with whom I collaborate. My scientific activities are also recorded there. Here you find my cv.

Mathematics:

I do research in algebraic combinatorics, especially in the theory of group branchings. I use categorical methods and Hopf algebraic tools.
In my research, I use computer algebra to be able to provide explicite models and concrete examples. For that purpose I have developed several computer algebra packages (jointly with Rafal Ablamowicz): SchurFkt, Gröbner package for Grassmann algebras GfG, Clifford and Bigebra.
Some ISP in Europe don't route these pages, therefore I will mirror parts of that material in the download area

Mathematical Physics:

I have a formal education as a physicist. My interests are, however, mathematics driven and contain foundations of QM, categorical methods, such as topoi, and functorial methods in QFT, and compositeness.

Some musical stuff can be found here