Characterization of segment and convexity preserving maps
classification
🧮 math.CA
keywords
functionslinearopensegmentsspaceaffinealwaysanother
read the original abstract
In this note functions that transform open segments of a linear space into open segments of another linear space are studied and characterized. Assuming that the range is non-collinear, it is proved that such a map can always be expressed as the ratio of two affine functions.
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