olemus
bilineaarfunktsioon \(f\), mis rahuldab järgnevat tingimust:
kui \(f(x,y) = 0\) iga vektori \(x\) korral
või \(f(y,x) = 0\) iga vektori \(x\) korral,
siis \(y\) on nullvektor
=
bilinear function f satisfying the following condition:
if f(x,y) = 0 for every vector x or f(y,x) = 0 for every vector x,
then y is the zero vector

ülevaateid
https://en.wikipedia.org/wiki/Degenerate_bilinear_form

https://altexploit.wordpress.com/tag/non-degenerate-bilinear-function/