Ordinary differential equations

jeudi 28 novembre 2013

Consider the first order differential equation

dy/dt = f(t,y)= -16t^3y^2, with the inital condition y(0)=1.

Estimate the lipschitz derivative for the differential equation by substituting the exact solution into ∂f/∂y.



=I found the exact solution by using the separable of variable and doing integration

which is y(t)= (4t^4 +1)^-1

And also i found the ∂f/∂y = -32yt^3

The question ask about by substituting the exact solution into ∂f/∂y to estimate the lipschitz derivative. I don't know how to substitute.

Does anyone knows about lipschitz derivative?



Help me Please.






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