P Blanc,
JD Rossi - Journal de Mathématiques Pures et Appliquées, 2019 - Elsevier
We study the PDE λ j (D 2 u)= 0, in Ω, with u= g, on∂ Ω. Here λ 1 (D 2 u)≤...≤ λ N (D 2 u)
are the ordered eigenvalues of the Hessian D 2 u. First, we show a geometric interpretation …