2 papers
math.OC2025
How to project onto SL()
Patrick Jaap, Oliver Sander
We consider the closest-point projection with respect to the Frobenius norm of a general real square matrix to the set SL() of matrices with unit determinant. As it turns out, i…
math.AP2025
Quasiconvex relaxation of planar Biot-type energies and the role of determinant constraints
Robert J. Martin, Ionel-Dumitrel Ghiba, Maximilian Köhler +3
We derive the quasiconvex relaxation of the Biot-type energy density for planar mappings $φ\colon\mathbb{R}^2\to \m…