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II.—The Stability of Solutions of Non-linear Difference-differential Equations*

Published online by Cambridge University Press:  14 February 2012

E. M. Wright
Affiliation:
University of Aberdeen

Synopsis

Poincaré, Liapounoff, Perron and others have proved theorems about the order of smallness, as the independent variable tends to + ∞, of solutions of differential equations with non-linear perturbation terms. A similar theory exists for difference equations. By a simple use of transforms, we here extend the theorems, with suitable modifications, to difference-differential equations. The results are an essential step in the development of a general theory of non-linear equations of this type.

Type
Research Article
Copyright
Copyright © Royal Society of Edinburgh 1950

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References

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