Periodic Points and Contractive Mappings
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Let X be a non-empty set and f:X→X. A point x ∈ X is (i) a fixed point off f(x)=x, and (ii) a periodic point of f iff there is a positive integer N such that fN(x)=x. Also a periodic orbit of f is the (finite) set {x, f(x), f2(x),…} where x is a periodic point of f.
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1998 ◽
Vol 21
(2)
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pp. 269-276
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1994 ◽
Vol 115
(1)
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pp. 121-132
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2009 ◽
Vol 19
(09)
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pp. 3017-3031
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2013 ◽
Vol 23
(08)
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pp. 1789-1803
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