The secret to doing good research is to always be a little underemployed. You waste years by not being able to waste hours - Amos Tversky
(If you have time for only one paper, look at Two Lives.)
Advances in Mathematics 389 (2021), 107917.
When multiple research areas evolve around the same object, one expects that there is a connection between them. The more distinct the methods are, the more fruitful this connection will be. In this paper, we will explore this double life for unimodular rows.
Documenta Mathematica 23 (2018) 1621 - 1634
Documenta Mathematica 20 (2015) 531 - 550.
Journal of Algebra and its Applications, Volume 11, Number 5, 2012.