Kari Hag

Kari Jorun Blakkisrud Hag (born April 4, 1941) is a Norwegian mathematician known for her research in complex analysis on quasicircles and quasiconformal mappings, and for her efforts for gender equality in mathematics.

[1] With Frederick Gehring she is the author of the book The Ubiquitous Quasidisk (American Mathematical Society, 2012).

Her dissertation, Quasiconformal Boundary Correspondences and Extremal Mappings, was supervised by Gehring.

[5] After completing her doctorate, she joined the Norwegian Institute of Technology (NTH), which later became part of NTNU.

[3] NTNU gave Hag their gender equality award in 2000, for her efforts to increase the interest of girls in science and mathematics.