• Media type: E-Article
  • Title: Counterexamples on compositions
  • Contributor: Appell, Jürgen [Author]; Brito, Belén López [Author]; Reinwand, Simon [Author]
  • Published: Würzburg University: Online Publication Service, 2022
  • Language: English
  • DOI: https://doi.org/10.1007/s00591-022-00318-x
  • Origination:
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  • Description: We give a collection of 16 examples which show that compositions \(g\) \(\circ\) \(f\) of well-behaved functions \(f\) and \(g\) can be badly behaved. Remarkably, in 10 of the 16 examples it suffices to take as outer function \(g\) simply a power-type or characteristic function. Such a collection of examples may serve as a source of exercises for a calculus course.
  • Access State: Open Access