Forms of Choice in Ring Theory

Lorenz Halbeisen, Norbert Hungerbühler, Nir Lazarovich, Waltraud Lederle, Marc Lischka, Salome Schumacher

Research output: Contribution to journalArticlepeer-review


We investigate the relationship between various choice principles and nth -root functions in rings. For example, we show that the Axiom of Choice is equivalent to the statement that every ring has a square-root function. Furthermore, we introduce a choice principle which implies that every integral domain has an nth -root function (for odd integers n), and introduce another choice principle which is equivalent to the Prime Ideal Theorem restricted to certain ideals. Finally, we investigate the dependencies between the two new choice principles and a choice principle for families of n-element sets.

Original languageAmerican English
Article number14
JournalResults in Mathematics
Issue number1
StatePublished - 1 Mar 2019


  • Square root functions in rings
  • axiom of choice
  • bounded multiple choice
  • consistency results
  • cycle choice
  • finite choice
  • root functions in integral domains

All Science Journal Classification (ASJC) codes

  • Mathematics (miscellaneous)
  • Applied Mathematics


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