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Some remarks concerning Riemannian extensions. (English) Zbl 1224.53067

Ukr. Mat. Zh. 62, No. 5, 579-590 (2010) and in Ukr. Math. J. 62, No. 5, 661-675 (2010).
Summary: We study some properties of Riemannian extensions in cotangent bundles with the help of adapted frames.

MSC:

53C20 Global Riemannian geometry, including pinching
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