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On some recent fixed point results for single and multi-valued mappings in b-metric spaces

Aleksić S., Mitrović Z. D., Radenović S.

Fasciculi Mathematici

2018

Nr 61

5--16

The main purpose of this paper is to improve and correct some results in b-metric spaces. Moreover, we prove that some results can be slightly relaxed and also we explore some proof techniques which provide short proofs of the results.

Remarks on best approximations in generalized convex spaces

Mitrović Z. D.

Journal of Applied Analysis

2006

Vol. 12, nr 2

181-188

In this paper, we prove a best approximation theorem in generalized convex spaces. As an application, we derive a result on the existence of a maximal element and a coincidence point theorem in generalized convex spaces. The results of this paper generalize some known results in the literature.