Mathematics Tripos Papers

  • Part IA
  • Part IB
  • Part II
  • FAQ

Paper 3, Section I, 1G1 G1G

Groups, Rings and Modules | Part IB, 2019

Prove that the ideal (2,1+−13)(2,1+\sqrt{-13})(2,1+−13​) in Z[−13]\mathbb{Z}[\sqrt{-13}]Z[−13​] is not principal.

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