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同調代數係代數入面嘅其中一個分支,主要喺抽象代數嘅方向研究同調。佢算係比較新嘅一個數學分支,大約可以追溯到19世紀尾Henri Poincaré同David Hilbert等人研究組合拓樸學(代數拓樸學嘅前身)同抽象代數(模理論同syzygy)。
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