Fixed point theorem for composite functions
نویسندگان
چکیده
منابع مشابه
A fixed point theorem for discontinuous functions
We establish the following fixed point theorem. Let P be a non-empty polytope in the n-dimensional Euclidean space and let f be a function from P to P satisfying that for every x in P for which f(x) 6= x there exists a neighborhood of x in P such that for any y and z in this neighborhood the inner product of f(y)− y and f(z)− z is non-negative. Then there exists x∗ ∈ P satisfying f(x∗) = x∗, i....
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ژورنال
عنوان ژورنال: New Trends in Mathematical Science
سال: 2019
ISSN: 2147-5520
DOI: 10.20852/ntmsci.2019.333