As of my knowledge cutoff in September 2021, there is no widely known mathematician by the name of Roland Zumkeller. It's possible that he is a mathematician who gained prominence after 2021 or is known within a specific mathematical community or region. If you have more information or context about him, I'd be happy to try to assist further.
| Coauthor | Papers Together |
|---|---|
| Tobias Nipkow | 6 |
| Thomas C. Hales | 6 |
| Steven Obua | 6 |
| John Harrison | 5 |
| Sean McLaughlin | 5 |
| Hoang Le Truong | 3 |
| Joseph Pleso | 3 |
| Jason Rute | 3 |
| Josef Urban | 3 |
| Gertrud Bauer | 3 |
| Victor Magron | 3 |
| Alexey Solovyev | 3 |
| Cezary Kaliszyk | 3 |
| Ky Vu | 3 |
| Diep Thi Trieu | 2 |
| Truong Quang Nguyen | 2 |
| Mark Adams | 2 |
| Dat Tat Dang | 2 |
| An Hoai Thi Ta | 2 |
| Trung Nam Tran | 2 |
| THI DIEP TRIEU | 1 |
| QUANG TRUONG NGUYEN | 1 |
| TAT DAT DANG | 1 |
| TAT THANG NGUYEN | 1 |
| John Harrison | 1 |
| Thang Tat Nguyen | 1 |
| Mark Raymond Adams | 1 |
| Thang Tat Nguyen | 1 |
| S. McLaughlin | 1 |
| Nam Trung Tran | 1 |
| Thi Hoai An Ta | 1 |