Gunilla Kreiss (born 1958[1]) is a Swedish applied mathematician and numerical analyst specializing in level-set methods and numerical methods for partial differential equations, especially for problems arising in fluid dynamics including two-phase flow, shear flow, and Burgers' equation.
[2] She earned a master's degree in applied mathematics there in 1982, and completed her PhD in 1986,[5] with the dissertation Analytical and numerical studies of the convergence to steady state of solutions of two model problems of fluid dynamics jointly supervised by Germund Dahlquist and Björn Engquist.
She took her present position as professor of numerical analysis at Uppsala University in 2006, and headed the Division of Scientific Computing there beginning in 2012.
[5] At Uppsala University, her doctoral students have included Sara Zahedi (PhD 2011),[6] who won the 2016 European Mathematical Society Prize for her work on fluid dynamics.
[7] She was appointed editor-in-chief of the journal BIT Numerical Mathematics in 2017,[8] and later became the sole editor after her co-editor, Lars Eldén, stepped down.