In
mathematics, negative definiteness is a property of any object to which a
bilinear form may be naturally associated, which is
negative-definite. See, in particular:
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Negative-definite bilinear form
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Negative-definite quadratic form
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Negative-definite matrix
In mathematics, a symmetric matrix M with real entries is positive-definite if the real number z^\textsfMz is positive for every nonzero real column vector z, where z^\textsf is the transpose of More generally, a Hermitian matrix (that is, a c ...
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Negative-definite function
{{Set index article, mathematics
Quadratic forms