| 26087 Lennart Gehrmann, Sören Sprehe | |
| On the abundance of rigid meromorphic cocycles for quadratic forms in four variables | |
| Projects: B5, B6 | |
| 26023 Lennart Gehrmann | |
| On rational quadratic cocycles | |
| Project: B6 | |
| 25079 Henri Darmon, Lennart Gehrmann, Michael Lipnowski | |
| Rigid meromorphic cocycles for orthogonal groups | |
| Project: B6 | |