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Harmonic morphisms. (English) Zbl 0414.53033

Complex analysis, Proc. Colloq., Joensuu/Finland 1978, Lect. Notes Math. 747, 123-131 (1979).

MSC:

53C20 Global Riemannian geometry, including pinching
31C12 Potential theory on Riemannian manifolds and other spaces