Talk:Intersection forms (Ex)
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Huijun Yang (Talk | contribs) (Created page with "<wikitex>; 1. The intersection form of $F_{g}$ is $g$ </wikitex>") |
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| − | 1. The intersection form of $F_{g}$ is $g$ | + | 1. The intersection form of $F_{g}$ is the orthogonal sum of $g$ copies of the standard symplectic form. In the usual basis, this form has the matrix: |
| − | + | $$\left( | |
| + | \begin{array}{cc} | ||
| + | 0 & 1\\ | ||
| + | -1 & 0 | ||
| + | \end{array} \right) | ||
| + | \oplus \dots \oplus | ||
| + | \left( | ||
| + | \begin{array}{cc} | ||
| + | 0 & 1\\ | ||
| + | -1 & 0 | ||
| + | \end{array} \right). | ||
| + | $$ | ||
</wikitex> | </wikitex> | ||
Latest revision as of 05:39, 3 January 2019
1. The intersection form of 
is the orthogonal sum of 
copies of the standard symplectic form. In the usual basis, this form has the matrix:
