Hostname: page-component-cd9895bd7-gxg78 Total loading time: 0 Render date: 2024-12-25T06:00:59.483Z Has data issue: false hasContentIssue false

Mahony's intriguing stiff equations

Published online by Cambridge University Press:  17 February 2009

Robert E. O'Malley Jr
Affiliation:
Department of Applied Mathematics, Box 352420, University of Washington, Seattle, Washington 98195, USA.
Rights & Permissions [Opens in a new window]

Extract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

Professor John Mahony, F.A.A., was a talented and unusual Australian applied mathematician (cf. Fowkes and Silberstein [6]), trained in Manchester in the early 1950s under James Lighthill and Richard Meyer. He may be best remembered today for his early work on multiple scales ([8]), for the soliton equation named after him and his collaborators Brooke Benjamin and Jerry Bona ([2]) and for the many students and colleagues he influenced positively. This note concerns certain illustrative examples listed in the three-part paper Stiff Systems of Ordinary Differential Equations by John and his then postdoc John Shepherd, published in the Journal of the Australian Math. Society (Series B) ([9]). After skimming their eighty-seven pages, it is hard to tell how thoroughly they understood the behavior of solutions to their sample problems (though these descriptions remain the most compelling parts of the papers). I can now admit that, sometime in the late 1970s, I recommended that (perhaps an early version of some of) these papers not be published in (I think) a SIAM journal. I am now glad Series B accepted them. Indeed, with regard to Mahony ([8]), Fowkes and Silberstein ([6]) reported “It is likely, in fact, that the JAMS paper was rejected by other more prestigious journals. This was often the case with John's work; partially because his material was almost always a departure from conventional wisdom, but also because John's writing could be rather formal and obscure.” The junior author of the 1981 papers now has achieved considerable mastery of the subject area, but couldn't have been expected to then take the helm from the opinionated Mahony who had initiated the study through his successful proposal to the Australian Research Council.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1999

References

[1]Aiken, R. C., Stiff Computation (Oxford University Press, Oxford, 1985).Google Scholar
[2]Benjamin, T. B., Bona, J. L. and Mahony, J. J., “Model equations for long waves in non-linear dispersive systems”, Phil. Trans. Royal Soc. Ser. A 272 (1972) 4778.Google Scholar
[3]Benoit, E. (ed.), Dynamic Bifurcations, Lecture Notes in Math. 1493 (Springer-Verlag, Berlin, 1991).CrossRefGoogle Scholar
[4]Dahlquist, G., Edsberg, L., Skollermo, G. and Soderlind, G., Are the Numerical Methods and Software Satisfactory for Chemical Kinetics?, Lecture Notes in Math. 968 (Springer-Verlag, Berlin, 1982) 149164.Google Scholar
[5]Fedoryuk, M. V., Asymptotic Analysis (Springer-Verlag, Berlin, 1993).CrossRefGoogle Scholar
[6]Fowkes, N. and Silberstein, J. P. O., “John Mahony, 1929–1992”, Historical Records of Australian Science 10 (1995) 265291.CrossRefGoogle Scholar
[7]Hairer, E. and Wanner, G., Solving Ordinary Differential Equations II. Stiff and Differential Algebraic Problems (Springer-Verlag, Berlin, 1991).Google Scholar
[8]Mahony, J. J., “An expansion method for singular perturbation problems”, J. Aust. Math. Soc. 2 (1962) 440463.CrossRefGoogle Scholar
[9]Mahony, J. J. and Shepherd, J. J., “Stiff systems of ordinary differential equations, Parts I, II, and III”, J. Austral. Math. Soc. (Series B) 23 (1981) 1751, 136–172, and 310–331.CrossRefGoogle Scholar
[10]Miranker, W. L., Numerical Methods for Stiff Equations (Reidel, Dordrecht, 1981).Google Scholar
[11]O'Malley, R. E. Jr, “Stiff differential equations and singular perturbations”, Research report, Centre for Mathematics and its Applications, Australian National University, 1996.Google Scholar
[12]Polyanin, A. D. and Zaitsev, V. F., Handbook of Exact Solutions for Ordinary Differential Equations (CRC Press, Boca Raton, 1995).Google Scholar