There are thirteen types of three-dimensional Leibniz algebras over the real field R based on the classification given by S. Ayupov, B. Omirov and I. Rakhimov in Leibniz algebras: structure and classification. CRC Press, Boca Raton, FL, 2020. In this paper, we investigate all the Nijenhuis operators on these thirteen types of three-dimensional Leibniz algebras.
Ma et al. (Wed,) studied this question.
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