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Date: 21-7-2018
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A second-order partial differential equation arising in physics,
If , it reduces to Laplace's equation.
It is also related to the Helmholtz differential equation
REFERENCES:
Arfken, G. "Gauss's Law, Poisson's Equation." §1.14 in Mathematical Methods for Physicists, 3rd ed. Orlando, FL: Academic Press, pp. 74-78, 1985.
Morse, P. M. and Feshbach, H. Methods of Theoretical Physics, Part I. New York: McGraw-Hill, p. 271, 1953.
Zwillinger, D. (Ed.). CRC Standard Mathematical Tables and Formulae. Boca Raton, FL: CRC Press, p. 417, 1995.
Zwillinger, D. Handbook of Differential Equations, 3rd ed. Boston, MA: Academic Press, p. 129, 1997.
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