英语词汇cobordism怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

　

单词	cobordism
释义	BETA Examples ofcobordism Dictionary> Examples ofcobordism cobordismisn’t in the Cambridge Dictionary yet. You can help! Add a definition He also worked on complexcobordism, showing that its formal group law is essentially the universal one. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Generalizations such ascobordismalso have induced homomorphisms. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is the composition law for morphisms in thecobordismcategory. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. This is similar to thecobordismring of oriented manifolds, except that the manifolds also have a vector bundle. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These maps have to satisfy various conditions similar to those satisfied by complexcobordism. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Over a field of characteristic 0, algebraiccobordismis the universal oriented cohomology theory for smooth varieties. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In low dimensions, the bordism question is trivial, but the category ofcobordismis still interesting. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The resultingcobordismgroups are then defined analogously to the unoriented case. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is a 1-dimensionalcobordismbetween the 0-dimensional manifolds 0, 1. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Contrarily tocobordismclasses of maps, the normal invariants are a "cohomology theory". From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Othercobordismtheories do not reduce to ordinary homology in this way, notably framedcobordism, orientedcobordismand complexcobordism. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Thecobordismclasses of manifolds form a ring that is usually the coefficient ring of some generalized cohomology theory. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Some of these cohomology theories, in particular complexcobordism, turned out to be some of the most powerful cohomology theories known. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The conditions on can be rephrased as saying that is a ring homomorphism from thecobordismring of manifolds (with given structure) to another ring. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There exists a homotopy theoretic analogue of the s-cobordismtheorem. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He also worked in the theory of characteristic classes, homotopy theory andcobordismtheory. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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更新时间：2026/3/22 22:01:43