## Research

Research in commutative and homological algebra at the mathematics department was initiated in the late 1960s by Jan-Erik Roos, Christer Lech and Jan-Erik Björk. They gradually built a strong group in this area including, in particular, C.Löfwall, R.Fröberg, Ch.Gottlieb, J.Backelin. Studies of algebraic and tropical geometry, homotopy theory and operads were later strengthened by T.Ekedahl, M.Passare, and S.Merkulov. Some of the present research efforts in the group may be regarded as a continuation of the activities of this internationally recognized research group. At the same time new members of the group broaden the number of research directions which now additionally include e.g. stable homotopy theory, moduli spaces, number theory, Langlands program, to mention a few.

## Seminars

- Seminar in algebra and geometry (joint with KTH)
- Topological activities (joint with KTH)
- Problem solving seminar in commutative algebra