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Let P  Px1 , . . . . ,xn be a quadratic form in n variables defined by (1) and let P be the distribution defined by (3) where  is a complex number. Using the Laurent series of P and considering the signature p,q of Px we given a sense to distributional products P .P,P  n 2 h .LP and P  n 2 s . n 2 P, where P  ,P  n 2 t we means finite part of P  at   r,r  1,2, . . . and    n 2  t, t  1,2, . . , t  0,1, . . ,P is defined by (13) and L si a linear homogeneous differential operator iterated s-times defined by (18).

El producto distribucional entre la parte finita de (formula) en (formula) y (formula) de la derivada k- ésima de la delta de Dirac en un hipercono