Fixed point theorems for contractions in fuzzy normed spaces and intuitionistic fuzzy normed spaces

摘要

In this paper, we prove that some coupled fixed point theorems and coupled coincidence point theorems for contractions in fuzzy normed spaces and intuitionistic fuzzy normed spaces can be directly deduced from fixed point theorems for contractions in fuzzy normed spaces. We also prove that these results are equivalent. MSC:47H10, 54A40, 54E50, 54H25.