變更

'''微分几何'''研究[[微分流形]]的几何性质，是[[现代数学]]中一主流；是[[广义相对论]]的基础，与[[拓扑学]]、[[代数几何]]及[[理论物理]]关系密切。

5. Ethan D. Bloch (1996), ''A First Course in Geometric Topology and Differential Geometry''

6. Alfred Gray (1998), ''Modern Differential Geometry of Curves and Surfaces with Mathematica'', 2nd ed.