Hello

I've seen the notation $\displaystyle S^1 \vee S^1$ in the context of topology, but I don't know what it means. I know what $\displaystyle S^1$ is, just not what the symbol $\displaystyle \vee$ means in this context.

Thanks in advance.

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- Jun 11th 2012, 11:31 AMModusPonensWhat does this symbol mean?
Hello

I've seen the notation $\displaystyle S^1 \vee S^1$ in the context of topology, but I don't know what it means. I know what $\displaystyle S^1$ is, just not what the symbol $\displaystyle \vee$ means in this context.

Thanks in advance. - Jun 11th 2012, 04:56 PMDevenoRe: What does this symbol mean?
Wedge sum - Wikipedia, the free encyclopedia

in your example, $\displaystyle S^1 \vee S^1$ is (equivalent to) a figure-8.