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On the properties of sphere-preserving maps |
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| Authors: | Shihai Yang |
| Affiliation: | School of Mathematics, Shanghai University of Finance and Economics, Shanghai 200433, China |
| Abstract: | In this paper we give a discussion of sphere-preserving maps of Hilbert spaces, and their relationship to Möbius transformations and to the preservation of cross-ratios. |
| Keywords: | Mö bius transformations Sphere-preserving maps Cross-ratio |
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