“…Other existing finite element methods involve consistent linearization of (1.1), cf., e.g., [7,31,3], or the addition of small perturbations via the bi-Laplacian [13,15]. The survey article [32] provides a thorough overview on FDMs and FEMs for the numerical approximation of solutions to (1.1). We furthermore refer to the review articles [12,30] on more general fully nonlinear PDEs.…”