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Quarterly of Applied Mathematics

Quarterly of Applied Mathematics

Online ISSN 1552-4485; Print ISSN 0033-569X

   
 
 

 

Ray methods for free boundary problems


Authors: J. A. Addison, S. D. Howison and J. R. King
Journal: Quart. Appl. Math. 64 (2006), 41-59
MSC (2000): Primary 35K60, 35K65, 80M35, 41A60, 41A63
DOI: https://doi.org/10.1090/S0033-569X-06-00993-4
Published electronically: January 24, 2006
MathSciNet review: 2211377
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Abstract | References | Similar Articles | Additional Information

Abstract: We discuss the use of the WKB ansatz in a variety of parabolic problems involving a small parameter. We analyse the Stefan problem for small latent heat, the Black–Scholes problem for an American put option, and some nonlinear diffusion equations, in each case constructing an asymptotic solution by the use of ray methods.


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Additional Information

J. A. Addison
Affiliation: Mathematical Institute, 24–29 St. Giles’, Oxford, OX1 3LB, U.K.

S. D. Howison
Affiliation: Mathematical Institute, 24–29 St. Giles’, Oxford, OX1 3LB, U.K.

J. R. King
Affiliation: Theoretical Mechanics Section, University Park, Nottingham, NG7 2RD, U.K.

Received by editor(s): January 1, 2005
Published electronically: January 24, 2006
Additional Notes: J. A. Addison and J. R. King gratefully acknowledge financial support from the Engineering and Physical Sciences Research Council (EPSRC)
Article copyright: © Copyright 2006 Brown University