Christina Wiis Tønnesen-Friedman is a Danish-American mathematician specializing in Riemannian geometry, especially of Kähler manifolds and Sasakian manifolds.
She is Marie Louise Bailey Professor of Mathematics at Union College in Schenectady, New York.
[1] Her doctoral dissertation, Extremal Kähler Metrics on Ruled Surfaces, was co-advised by Claude LeBrun and Henrik Laurberg Pedersen.
[2] Tønnesen-Friedman became a research assistant professor at Aarhus University in 1997.
In 2001, she moved to Union College as an assistant professor of mathematics.