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getWittIndex -- returns the Witt index of a symmetric bilinear form

Synopsis

Description

By the Witt Decomposition Theorem, any non-degenerate form decomposes uniquely as $\beta \cong n \mathbb{H} \oplus \beta_a$ where the form $\beta_a$ is anisotropic. The integer $n$ is called the Witt index of $\beta$. See for instance [L05, I.4.3].

Citations:

See also

Ways to use getWittIndex:

For the programmer

The object getWittIndex is a method function.