100=aacr2 1923-2002 aristotle bifurcatie bifurcationtheory biology catastrofetheorie(wiskunde) caustics(optics) chaoticbehaviorinsystems comparativeandgeneral congresses coronalmassejections differentiabledynamicalsystems differentiablemanifolds differentiablemappings geography geometricaloptics globalanalysis(mathematics) globaldifferentialgeometry grammar hydrodynamics knowledge languageandlanguages manifolds(mathematics) mathematicallinguistics mathematicalmodels mathematicalphysics mathematics niet-lineairesystemen philosophy phonetics phonology physics rené science semantics singulariteiten singularities(mathematics) solaractivity solarflares stability structurallinguistics teoriadascatastrofes theoryof thom variation