Superharmonic function

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A function $u(x)$ of a point $x$ of a Euclidean space $\mathbf R^n$, $n\geq1$, or of a harmonic space such that $-u(x)$ is a subharmonic function.


A function that is both subharmonic and superharmonic is said to be a harmonic function.

How to Cite This Entry:
Superharmonic function. Encyclopedia of Mathematics. URL:
This article was adapted from an original article by E.D. Solomentsev (originator), which appeared in Encyclopedia of Mathematics - ISBN 1402006098. See original article