Irreducible vector bundle do not exist over algebraic manifold , but there are plenty of them over compact complex non-algebraic surfaces.
代数流形上不存在不可约的向量丛，但在紧致的非代数曲面上，存在许许多多不可约的向量丛。
参考来源 - 某些非代数曲面上的向量丛·2,447,543篇论文数据，部分数据来源于NoteExpress
治疗后，皮肤紧致的效果天天都会有改善。
After treatment, the skin effect of compact will have to improve every day.
有反例表明一个紧致拓扑空间不一定是序列紧致的拓扑空间。
There exists a counterexample showing that a compact topological space is not necessarily a sequentially compact space.
并由此讨论了紧致的非单连通黎曼流形上无穷多的闭测地线存在性问题。
Also, the paper discuss the existence of the infinite closed geodesics of a compact no-simply connected Riemannian manifold.
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