Erwann Delay. $L^p$ almost conformal isometries of Sub-Semi-Riemannian metrics and solvability of a Ricci equation.
Proceedings of the American Mathematical Society, American Mathematical Society, 2018, 146 (8), pp.3499-3507.
⟨10.1090/proc/13898⟩.
⟨hal-03516327⟩