Halfway to a solution of
R. A. Mollin, A. J. Van der Poorten, H. C. Williams (1994)
Journal de théorie des nombres de Bordeaux
Similarity:
It is well known that the continued fraction expansion of readily displays the midpoint of the principal cycle of ideals, that is, the point halfway to a solution of . Here we notice that, analogously, the point halfway to a solution of can be recognised. We explain what is going on.