Characterization of ∑-Semicompleteness via Caristi’s Fixed Point Theorem in Semimetric Spaces
Introducing the concept of ∑-semicompleteness in semimetric spaces, we extend Caristi’s fixed point theorem to ∑-semicomplete semimetric spaces. Via this extension, we characterize ∑-semicompleteness. We also give generalizations of the Banach contraction principle.
Gorde:
| Egile nagusia: | |
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| Formatua: | Artigo |
| Hizkuntza: | Inglês |
| Argitaratua: |
Wiley
2018-01-01
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| Saila: | Journal of Function Spaces |
| Sarrera elektronikoa: | http://dx.doi.org/10.1155/2018/9435470 |
| Etiketak: |
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