Abstract
We establish relations between different approaches to the ideal closure of a geodesic metric space with nonpositive curvature in the sense of Busemann. We construct the counterexample showing that the Busemann ideal closure can differ from the geodesic closure.
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Original Russian Text © P.D. Andreev, 2007, published in Matematicheskie Trudy, 2007, Vol. 10, No. 1, pp. 16–28.
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Andreev, P.D. Geometry of ideal boundaries of geodesic spaces with nonpositive curvature in the sense of Busemann. Sib. Adv. Math. 18, 95–102 (2008). https://doi.org/10.3103/S105513440802003X
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DOI: https://doi.org/10.3103/S105513440802003X