Abstract
This paper considers geodesic triangies in a Riemannian manifoldM. First we imbed the set Σ of geodesic triangles inM into a big spaceE, then find some equations inE satisfied by tangent vectors of Σ. Finally we give an application of the result.
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Yanlin, Y. Trigonometry (II). Acta Mathematica Sinica 6, 80–86 (1990). https://doi.org/10.1007/BF02108867
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DOI: https://doi.org/10.1007/BF02108867