Running through these volumes in order, we have in the second the memoir, Summatio quarundam serierum singularium, the memoirs on the theory of biquadratic residues, in which the notion of complex numbers of the form a--bi was first introduced into the theory of numbers; and included in the Nachlass are some valuable tables.
They include, besides his various works and memoirs, notices by him of many of these, and of works of other authors in the Göttingen gelehrte Anzeigen, and a considerable amount of previously unpublished matter, Nachlass.
They include, besides his various works and memoirs, notices by him of many of these, and of works of other authors in the Göttingen gelehrte Anzeigen, and a considerable amount of previously unpublished matter, Nachlass.