In mathematics, specifically the theory of quadratic forms, an ε-quadratic form is a generalization of quadratic forms to skew-symmetric settings and to *-rings; ε = ±1, accordingly for symmetric or skew-symmetric. They are also called ( − ) n {\displaystyle (-)^{n}} -quadratic forms, particularly in the context of surgery theory.
In mathematics, specifically the theory of quadratic forms, an ε-quadratic form is a generalization of quadratic forms to skew-symmetric settings and to *-rings; ε = ±1, accordingly for symmetric or skew-symmetric. They are also called ( − ) n {\displaystyle (-)^{n}} -quadratic forms, particularly in the context of surgery theory.
Source: Wikipedia "Ε-quadratic form" · CC BY-SA 4.0
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