Sobolev spaces | Inequalities

Friedrichs's inequality

In mathematics, Friedrichs's inequality is a theorem of functional analysis, due to Kurt Friedrichs. It places a bound on the Lp norm of a function using Lp bounds on the weak derivatives of the function and the geometry of the domain, and can be used to show that certain norms on Sobolev spaces are equivalent. Friedrichs's inequality generalizes the Poincaré–Wirtinger inequality, which deals with the case k = 1. (Wikipedia).

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Related pages

Poincaré inequality | Norm (mathematics) | Domain of a function | Functional analysis | Bounded set | Mathematics | Lp space | Weak derivative | Partial derivative | Geometry | Theorem | Euclidean space | Sobolev space | Diameter