>>744-745
>ガロア理論のやり取りで、C5のガロア群の話が出ていて気になったから、少し前に実際に作問してみた。

ご苦労様です

>Whittaker-Watson の演習問題を

懐かしいな
昔 コテの”猫”さんが元気だったころ
ガロアすれに来て
”ホイテカワトソン”・・ というので
こちらが それは何かというと
”Whittaker-Watson”だという
調べて、”テラカン”みたいなものか（下記 自然科学者のための数学概論 寺沢 寛一）
というと
一緒にするな！ と怒られた （＾＾

”猫”さん曰く、名著で たまに”Whittaker-Watson”を取り出して 眺めるのがいいんだとか
余談だが、佐藤幹夫先生が 若いころ”テラカン”を愛読していたと書いてあった（＾＾

(参考)
自然科学者のための数学概論 増訂版 | 寺沢 寛一 |本 | 通販
Amazon.jp
自然科学者のための数学...
「寺寛の数学概論」として親しまれてきた本書は,応用数学の基礎全般を扱った最適な指導書として長年にわたって不動の位置を占めている.実函数の微積分から,古典微分幾何, ...
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https://www.wikidata.org/wiki/Q7996825
Whittaker and Watson
Landmark textbook in mathematical analysis by E. T. Whittaker, originally published in 1902 with four editions.
A Course of Modern AnalysisA Course of Modern Analysis: an introduction to the general theory of infinite processes and of analytic functions; with an account of the principal transcendental functions

https://en.wikipedia.org/wiki/A_Course_of_Modern_Analysis
A Course of Modern Analysis: an introduction to the general theory of infinite processes and of analytic functions; with an account of the principal transcendental functions (colloquially known as Whittaker and Watson) is a landmark textbook on mathematical analysis written by Edmund T. Whittaker and George N. Watson, first published by Cambridge University Press in 1915.[1] The first edition was Whittaker's alone, but later editions were co-authored with Watson.
History
Its first, second, third, and the fourth edition were published in 1902,[2] 1915,[3] 1920,[4] and 1927,[5] respectively. Since then, it has continuously been reprinted and is still in print today.[5][6] A revised, expanded and digitally reset fifth edition, edited by Victor H. Moll, was published in 2021.[7]
The book is notable for being the standard reference and textbook for a generation of Cambridge mathematicians including Littlewood and Godfrey H. Hardy. Mary L. Cartwright studied it as preparation for her final honours on the advice of fellow student Vernon C. Morton, later Professor of Mathematics at Aberystwyth University.[8] But its reach was much further than just the Cambridge school; André Weil in his obituary of the French mathematician Jean Delsarte noted that Delsarte always had a copy on his desk.[9]