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RobertSmart replied to the thread How to proof that these two statements are equivalent?.

To prove the equivalence between the two statements, let's tackle it step by step. (1) The metric d is both homogeneous and translation...

Rika posted a new thread.

Study the well-pose, Ulam-Hyers and Ostroxski stability of x=f(x) , x∈X , f:X→X is a Reich operator

x = f(x) is the fixed point equation and (X,d) is a complete metric space. f : X ~> X is a Reich operator if there exists α,β>=0...

Forum: Advanced Applied Math

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RobertSmart replied to the thread Function to return a vector after it is divided by (1 + square magnitude)?.

It seems you're trying to find a way to retrieve the original vector A from another vector B after dividing by a certain factor related...