Are there theorems of continuity or boundedness of inverse functions in Banach spaces?

I am working on a perturbation h of the identity I on a Banach space X, i.e. h(x) = x – f(x), with f(0)=0. f is regular enough on X, but I do not know if the regularity holds on a subspace Y of...

20 October 2017 7,010 3 View