“σ-compactness”的概念、定义、习题解题方法及翻译-数学辞典

数学辞典收录了72750条数学词条，基本涵盖了常用数学知识及数学英语单词词组的翻译及用法，是数学学习的有利工具。

单词	σ-compactness
释义	σ-compactness σ 紧性
随便看	reduced cubic equation reduced cycle reduced degree reduced density matrix reduced differential polynomial reduced direction reduced divisor reduced echelon form reduced elliptic fibration reduced enumeration reduced equation reduced extremal distance reduced form reduced formula reduced fraction reduced free group reduced game reduced G-bundle reduced gradient reduced gradient method reduced Grobner basis reduced Grothendieck group reduced group reduced homology group reduced homology sequence