圆周的笛卡尔直积涉及拓扑,可以这样理解,一个圆沿着另一圆的圆周旋转一周,1.2线段的笛卡尔 直积(矩形),圆周的笛卡尔直积(圆环
回答: 圆群标记为T,为所有模为1之复数所组成的乘法群,即在复数平面上的单位圆,圆群的符号T源自于Tn(n个T 的直积)几何上是个n-环
由 marketreflections
于 2011-09-21 00:16:33
问题大概是这样的:给下面一些笛卡尔直积做出几何解释 |
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