Hello, I tried this in analysis but maybe it is a more topological question. If given a function f on R such that \int_R f(x)dx = 1 and is decreasing and 1-lipschitz, show that(adsbygoogle = window.adsbygoogle || []).push({});

the function g(y) = min{x,f(x)} where y = x-f(x) and x>=0, also satisfies \int_Y g(y)dy=1.

I really would appreciate any observations. The transformation of the Domain is 1-1 right? so what else

is required to have integral unity of g also? I have some other info that may or may not help: f(x) = g(y) -1/2y +1/2|y|, x=g(y)+1/2y +1/2|y|.

Thank you

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# Integrating the minimum metric

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