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>これが面白かったのでMaclaneの"Homology"を読み始め
>線形代数の方はお留守になってしまいました。

これか
"Homology"1963だが、実質”圏論”だね
GROTHENDIECK Tohoku Math(1957)も入っている

で、数学が面白くなったんだ
東大受験勉強時代は、数学者になる予定じゃなかったのに・・

しかし、よくこんなものが
独学で読めますね・・w

https://www.アマゾン
Homology (Classics in Mathematics) Paperback ? Illustrated, October 4, 2013
English Edition by Saunders Maclane

Product Details
Publisher ? : ? Springer; 1995th edition (October 4, 2013)
Publication date ? : ? October 4, 2013
Language ? : ? English
Paperback ? : ? 440 pages
(海賊版より)
HOMOLOGY 1963
DR. SAUNDERS MAC LANE. MAX MASON DISTINGUISHED SERVICE
Preface
In presenting this treatment of homological algebra, it is a pleasure
to acknowledge the help and encouragement which I have had from
all sides. Homological algebra arose from many sources in algebra and
topology. Decisive examples came from the study of group extensions
and their factor sets, a subject I learned in joint work with OTTO SCHILLING. A further- development of homological ideas, with a view to their
topological applications, came in my long collaboration with SAMUEL
EILENBERG; to both collaborators, especial thanks. For many years
the Air Force Office of Scientific Research supported my research
projects on various subjects now summarized here; it is a pleasure to
acknowledge their lively understanding of basic science.

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