ACTA MATHEMATICA UNIVERSITATIS COMENIANAE

Vol. 67,   2   (1998)
pp.   373-376
ON METRIC PRESERVING FUNCTIONS AND INFINITE DERIVATIVES
R. W. VALLIN

Abstract.  We give two examples to answer a question of J. Dobos and Z. Piotrowski concerning the points at which a metric preserving function has an infinite derivative.

AMS subject classification.  54E40; Secondary 26A24
Keywords. 
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