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    • A new proof of the Unique Factorization of Z 1 + -d 2 for d = 3, 7, 11, 19, 43, 67, 163 

      Ramírez V., Victor J.
      In this paper, we give an elementary proof of the fact that the rings are unique factorization domains for the values d = 3, 7, 11, 19, 43, 67, 163. While the result in itself is well known, our proof is new and completely ...
      Universidad Nacional de Colombia Revistas electrónicas UN Revista Colombiana de Matemáticas.