%0 Journal Article %A Claude LeBrun %T Yamabe Invariants, Homogeneous Spaces, and Rational Complex Surfaces %J Symmetry, integrability and geometry: methods and applications %D 2023 %V 19 %U http://geodesic.mathdoc.fr/item/SIGMA_2023_19_a26/ %G en %F SIGMA_2023_19_a26