Theta graph
= Theta graph
{c}
{title2=$\Theta_n$}
{wiki}
The theta graph $\Theta_n$ has two vertices joined by $n$ edges. It has first Betti number $n-1$ and occurs as the link of a point on the spine of a book with $n$ two-dimensional pages.
= Theta graph
{c}
{title2=$\Theta_n$}
{wiki}
The theta graph $\Theta_n$ has two vertices joined by $n$ edges. It has first Betti number $n-1$ and occurs as the link of a point on the spine of a book with $n$ two-dimensional pages.