catastrophe theory(redirected from Catastrophy theory)
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Related to Catastrophy theory: Chaos theory
a branch of mathematics that deals with large changes in the total system resulting from small changes in a critical variable in the system; some epidemics, gene frequencies, and the social behavior of populations may be explained by this theory.
the mathematical basis for the study of large changes in a total system which may result from small changes in a critical variable in the system.