Abstract.
In this paper we study harmonic maps from a compact riemannian manifold equiped with a non trivial parallel 2-form, to a Kähler manifold of strongly negative curvature tensor or a riemannian manifold of strictly negative complex sectional curvature. In a first part we set up some rigidity results of Siu type. Then we obtain an upper bound for the rank of such maps in terms of the rank of the 2-form and deduce some vanishing theorems.
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Received: March 4, 1996
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El Soufi, A., Petit, R. Applications harmoniques, applications pluriharmoniques et existence de 2-formes parallèles non nulles. Comment. Math. Helv. 73, 1–21 (1998). https://doi.org/10.1007/s000140050043
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DOI: https://doi.org/10.1007/s000140050043