Markus Hausmann from the Mathematical Institute at the University of Bonn is a mathematician whose research covers algebraic topology and its interaction with algebraic geometry, representation theory and tensor triangular geometry. He is engaging in basic mathematical research with his project, entitled “Bordism of symmetries: From global groups to derived orbifolds” (BorSym), in which he will use algebraic methods to study the symmetry of spaces. As he explains: “The project studies connections between group actions on geometric objects, the algebra of equivariant formal groups and bordism rings of orbifolds. From this interplay we hope to obtain new insights into long-standing open problems on symmetries." The ERC will be giving BorSym close to €1.5 million in funding over the next five years. Markus Hausmann plans to use the money “to assemble a big team of postdocs and doctoral students so that we can address the unanswered questions together. I wouldn’t be able to do anything like this without the grant.”

**Markus Hausmann** studied mathematics at the University of Bonn, staying on to complete a doctorate in the same subject in 2016. He then moved to work as a postdoc at the University of Copenhagen before taking up positions as an Akademischer Rat auf Zeit (a lecturer with temporary civil servant status) at the University of Bonn and as an associate professor at the University of Stockholm. In July 2023, Markus Hausmann returned to his alma mater, where he now researches and teaches in his current role as Professor of Mathematics as well as being a member of the Hausdorff Center for Mathematics (HCM).