“Euler characteristic of a topological space X”的概念、定义、翻译、参考文献-科学参考

单词	Euler characteristic of a topological space X
释义	Euler characteristic of a topological space X [`ȯi·lǝr ´kar·ik·tǝ`ris·tik ǝv ǝ ´täp·ǝ¦läj·i·kǝl ¦spās `eks] ^MATHEMATICS The number χ (X ) = ∑(-1)^qβ_q , where β_q is the qth Betti number of X.
随便看	anthelic arc anthelion anthelminthic anthelmintic anther antheraxanthin anther culture antheridiophore antheridium antheriferous antherozoid anther smut anthesis Anthicidae anthill anthoblast anthocarpous anthocaulis Anthocerotae anthocodium Anthocoridae anthocyanidin anthocyanin Anthocyathea anthocyathus

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