Affiliation:
1. Faculty of Mathematics - Informatics Teacher Education, Dong Thap University, Cao Lanh City, Dong Thap Province, Vietnam
Abstract
We show that the range of contraction constant in a result of Karap?nar et
al. can not be extended to [0, 1). However, by using some additional
conditions, we prove that the range can be extended to [0,1). The first
result gives a negative answer to the open question on a Ciric type
theorem in b-metric spaces, and the next results are improvements of Ciric
type theorems in b-metric spaces in the literature.
Publisher
National Library of Serbia
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