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.
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.
Wedge sum - Wikipedia, the free encyclopedia
in your example, $\displaystyle S^1 \vee S^1$ is (equivalent to) a figure-8.