Abstract
In this paper, some new fixed point theorems for semi-closed 1-set-contractive operators of functional type are obtained, which generalize the famous Petryshyn's theorem and Altman's theorem by replacing the norm with some classes of functionals.
Citation
Chuanxi Zhu. Wanting Zhang. Zhaoqi Wu. "SOME GENERALIZATIONS OF PETRYSHYN'S THEOREM AND ALTMAN'S THEOREM." Taiwanese J. Math. 19 (2) 653 - 658, 2015. https://doi.org/10.11650/tjm.19.2015.4633
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