Definition:Harmonic Polynomial
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Definition
Let $\map P z$ be a polynomial over the complex numbers.
Then $\map P z$ is a harmonic polynomial if and only if its Laplacian is $0$.
That is, if and only if it satisfies Laplace's equation:
- $\nabla^2 \map P z = 0$
That is, if and only if $\map P z$ is a harmonic function.
Also see
- Results about harmonic polynomials can be found here.
Sources
- 1964: Milton Abramowitz and Irene A. Stegun: Handbook of Mathematical Functions ... (previous) ... (next): $3$: Elementary Analytic Methods: $3.7$ Complex Numbers and Functions: Powers: $3.7.23$