Abstract
Milne's time-dependent equation of transfer of trapped radiation in finite absorbing medium has been exactly solved by a combination of Das Gupta's modified form of the Wiener-Hopf technique and method of solving boundary value problems in the theory of heat conduction as adopted by Chandrasekhar (1950) to solve the same equation approximately in combination with his method of discrete ordinates. Milne himself had earlier obtained an approximate solution of his equation.
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Bishnu, S.K., Das Gupta, S.R. An exact solution of time-dependent equation of transfer of trapped radiation in a finite absorbing medium. Astrophys Space Sci 134, 261–299 (1987). https://doi.org/10.1007/BF01094936
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DOI: https://doi.org/10.1007/BF01094936