Abstract
The isometries of the space of convex bodies contained in a Euclidean ball with respect to the symmetric difference metric are precisely the mappings generated by rotations of the ball.
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Gruber, P.M. Isometries of the space of convex bodies contained in a Euclidean ball. Israel J. Math. 42, 277–283 (1982). https://doi.org/10.1007/BF02761407
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DOI: https://doi.org/10.1007/BF02761407