Three remarks on a question of Aczél

Orr Moshe Shalit

Research output: Contribution to journalArticlepeer-review


At ISFE 2009 J. Aczel asked for the monotonic solutions of a certain functional equation. We show that when a parameter appearing in the equation takes a certain value there is a unique monotonic solution, and when it takes other values there are infinitely many monotonic solutions. Further, we comment on continuous and continuously differentiable solutions.

Original languageEnglish
Pages (from-to)201-205
Number of pages5
JournalAequationes Mathematicae
Issue number3
StatePublished - 1 Dec 2012

ASJC Scopus subject areas

  • Mathematics (all)
  • Discrete Mathematics and Combinatorics
  • Applied Mathematics


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