Y Nitta, K Sekiya - Tohoku Mathematical Journal, Second Series, 2012 - jstage.jst.go.jp
… ifold (S, g) with cB 1 (S) > 0 and c1(D) = 0, one can get a Sasaki-Einstein metric by deforming
the Sasakian structure varying the Reeb vector field (cf. [7, Theorem 1.2]). Uniqueness of …