Knowledge of elementary algebraic topology and elementary differential geometry is recommended, but not required.
建议事先知道一些关于代数拓扑和微分几何的基本知识, 但不是必需的.
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Algebraic topology is the study of the global properties of spaces by means of algebra.
代数学的拓扑是透过代数空间的全球特性的研究.
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Some more advanced algebraic topology may also be useful as might some knowledge of category theory.
更深入的代数拓扑学以及范畴理论的知识将有更大的帮助.
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