Semigroup Forum

, Volume 22, Issue 1, pp 283–284 | Cite as

No semitopological monoid can be defined on the closure of {(x,sun 1/x)| x | ℝ\{0}}

  • Wolfgang Ruppert
Short Note


Distinct Element Neighborhood Versus Semigroup Forum Usual Multiplication Zero Element 
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  1. [1]
    Berglund, J.F.: Problems about semitopological semigroups, Semigroup Forum19 (1980), 373–383.zbMATHCrossRefMathSciNetGoogle Scholar
  2. [2]
    Berglund, J.F.: Compact connected ordered semitopological semigroups, J. London Math. Soc. (2)4 (1972), 533–540.zbMATHCrossRefMathSciNetGoogle Scholar

Copyright information

© Springer-Verlag New York Inc. 1981

Authors and Affiliations

  • Wolfgang Ruppert
    • 1
  1. 1.Institut für Mathematik und Angewante StatitikUniversität für BodenkulturWien

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