>>ガウスが数学の教授になったことはなく、

ガウスは24歳の時にゲッティンゲン大学の正教授になったと
かつてドイツの数学の教授に教わったことがあったし
天文台長になってからは兼任だったとどこかで読んだ。
だからWikipediaをうのみにはできない。

ガウスがDA以後も数論に執着していたことは遺稿の中の
未発表の論文からも明らかである。


In fact Gauss attempted twice to publish his proof of the class number formula; the first attempt begins with the sentence "33 years have passed since the principles of the wonderful connection, to which this memoir is dedicated, was discovered, as I have remarked at the end of the Disquisitiones". Here Gauss refers to the last paragraph of the Disquisitiones, where he reports to have discovered the analytic solution to a problem stated in articles. 306 and 302. The second version of his manuscript begins with the same sentence, except that the 33 years have been replaced by 36 years.