Cordian Riener

Cordian Riener works at the intersection of real algebraic geometry, optimization, and symbolic computation. His research focuses on developing new methods for solving polynomial optimization problems using semidefinite programming, with applications ranging from robotics and control theory to quantum information and signal processing.

As Co-Director of the Lie–Størmer Center, Cordian leads the Center's efforts in connecting pure mathematics with computational applications. He has pioneered methods for certifying polynomial non-negativity and established international collaborations through the Mathesis PhD school, which provides advanced training in the mathematical foundations of computation to doctoral students from Norway and partner institutions.

His work bridges theoretical mathematics and practical computation, demonstrating how algebraic geometry provides rigorous foundations for optimization algorithms. Through LSC, he advances the vision of mathematics as both intellectually deep and practically transformative, mentoring the next generation of researchers who work at this fertile intersection of algebra, geometry, and computation.