Resumen de Sulle ipersuperficie generate dalla Jacobiana di un sistema lineare di quadriche

Lando Degoli

• We first focus our attention on some important properties of the hypersurfaces $A_{ij}=0$ obtained from the jacobian matrix of rank $r$ of a linear system of quadrics in $S_r$. Then we find the birational transformations which exist between those hypersurfaces and the hyperplanes of $S_r$. We finally give some significant examples.