An explicit series approximation to the
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Jun Cheng; Song-Ping Zhu; Shi-Jun Liao
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Article
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2010
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Elsevier Science
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English
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This paper derives an explicit series approximation solution for the optimal exercise boundary of an American put option by means of a new analytical method for strongly nonlinear problems, namely the homotopy analysis method (HAM). The Black-Sholes equation subject to the moving boundary conditions