11. Converges in distribution to a quadratic form of independent standard normal random variables. 12. Square classes are frequently studied in relation to the theory of quadratic forms . 13. In geometry, the Euclidean distance is the square root of a quadratic form . 14. He used this theory of equivalent quadratic forms to prove whole number theory results. 15. In quadratic forms , the Hurwitz problem asks for multiplicative identities between quadratic forms. 16. In quadratic forms, the Hurwitz problem asks for multiplicative identities between quadratic forms . 17. For Euclidean spaces,, implying that the quadratic form is positive-definite. 18. In this way one may visualize 3-dimensional real quadratic forms as conic sections. 19. The particulars of the spacetime quadratic form study have been absorbed into Lie sphere geometry. 20. The equivalence relation is given by stabilization with respect to hyperbolic ?-quadratic forms :
