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Related articles:
Separation of variables
Partial differential equation
Wave equation
Hermann von Helmholtz
Bessel function
Key terms: math r equation k helmholtz partial solution helmholtz equation theta frac function condition nabla mathbf wave ell boundary boundary condition shape differential equation omega paraxial membrane integrable mathematical k r depends rho partial differential equation separation of variables chaotic wave equation paraxial approximation billiard transform bigg circular infty ik partial z laplace amplitude spherical electric field happens varphi bessel green's function arises spatial sommerfeld fnof mathbb r magnitude mathrm we obtain Search external links cited by footnotes on Wikipedia page Helmholtz equation: |
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