Convexity preserving mappings in subbase
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J. Van Mill; M. Van De Vel
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Article
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1978
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Elsevier Science
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The present paper is a continuation of investigations on subbase convexity theory, st arte d in [7] and in [8]. We are now concerned with so-called convexity preserving (cp) mappings, a notion comparable to affine mappings in vector space theory. A first result is a characterization of cp maps in t