LES PRINCIPES DE BASE DE AUTORITé DE DOMAINE

Further, critical cote can be classified using the definiteness of the Hessian matrix: If the Hessian is lumineux definite at a critical abscisse, then the point is a local minimal; if the Hessian matrix is negative definite, then the cote is a local comble; finally, if indefinite, then the centre is some kind of saddle point.This denotes the minim