Unique Solution for IVP of Continuous Functions with Global Lipschitz Condition

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Homework Statement


For the space of continuous functions C[0,T] suppose we have the metric ρ(x,y) =sup _{t\in [0,T]}e^{-Lt}\left|x(t)-y(t)\right| for T>0, L≥0.

Consider the IVP problem given by

x'(t) = f(t,x(t)) for t >0,
x(0) = x_{0}

Where f: ℝ×ℝ→ℝ is continuous and globally Lipschitz continuous with
respect to x.

Find an integral operator such that the operator is a contraction on (C[0,T],ρ) and hence deduce the IVP has a unique solution on C^{1}[0,T]

The Attempt at a Solution



I was able to show that the metric space (C[0,T],ρ) is complete, but I'm having problems finding an integral operator that is a contraction on the space. I've tried the operator
(Tx)(t) = x_{0} + \int^{t}_{0}f(s,(x(s))dsbut I was not able to get a contraction. Any help would be much appreciated!
 
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try finding T|x-y| and then use the lipschitz continuity?
 
I have tried this but was unable to show it was a contraction. I'm not to sure if I have the wrong integral operator for this particular question or if I'm trying to show a contraction in the wrong way.
 
I'm not sure if your operator is contraction, but it does not seem to be a fixed point iteration operator at all ...
 
There are two things I don't understand about this problem. First, when finding the nth root of a number, there should in theory be n solutions. However, the formula produces n+1 roots. Here is how. The first root is simply ##\left(r\right)^{\left(\frac{1}{n}\right)}##. Then you multiply this first root by n additional expressions given by the formula, as you go through k=0,1,...n-1. So you end up with n+1 roots, which cannot be correct. Let me illustrate what I mean. For this...

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