Surfaces du quatrième ordre; Droites; Involutions; Hyperplans; Courbes canoniques
Abstract :
[it] Si dimostra che una superficie del quarto ordine contenente una retta rappresenta una involuzione appartenente ad una superficie di uno spazio a quattro dimensioni di cui le sezioni iperpiane sono le curve canoniche. [fr] On montre qu'une surface d'ordre 4 contenant une ligne représente une involution appartenant à une surface d'un espace quadridimensionnel dont les sections des hyperplans sont les courbes canoniques. [en] We show that a surface of order 4 containing a line represents an involution belonging to a surface of a four-dimensional space whose hyperplane sections are the canonical curves.
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