Abstract
Some results from the theory of best (or best simultaneous) approximation in a normed linear space have been extended to a normed almost linear space [strong normed almost linear space].
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Rao, G.S., Bhaskaramurthi, T.L. Chebyshev centers proximinality and farthest points in strong normed almost linear spaces. Approx. Theory & its Appl. 13, 99–111 (1997). https://doi.org/10.1007/BF02836813
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DOI: https://doi.org/10.1007/BF02836813