Wirtinger inequality (2-forms)
= Wirtinger inequality (2-forms)
{wiki=Wirtinger_inequality_(2-forms)}
The Wirtinger inequality is a fundamental result in the analysis of functions defined on domains, especially in the context of Sobolev spaces and differential equations. The classic version of the Wirtinger inequality states that if a function \\( f \\) is absolutely continuous on a closed interval \\(\[a, b\]\\) and has a zero mean (i.e.