Remarks on Ume’s u-distance and Ekeland’s variational principle
Georgiana Goga
Abstract
carpathian_2012_28_2_257_264_abstractThe purpose of this paper is to present some remarks on Ume's new concept of distance called u-distance, which generalizes w-distance and Suzuki's t-distance. As an application of the u-distance version of Ekeland's variational principle, we establish a generalized flower petal theorem.
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