KoG, Vol. 3 No. 3, 1998.
Izvorni znanstveni članak
The Focal Curve of the Pencil and the Range of Conics in an Isotropic Plane
Ana Sliepčević
; Građevinski fakultet Sveučilišta u Zagrebu, Zagreb, Hrvatska
Sažetak
Although the pencil and the range of conics in an isotropic plane are dual their focal curves are not dual. In the paper we proved that the focal curve of the pencil of conics in an isotropic plane is in general non rational cubic. This cubic is constructed in the general and for some degenerated cases. For the range of conics the focal curve is the rational cubic with the absolute point of the plane as a double point. This cubic is constructed in general and in some interesting special cases.
Ključne riječi
focal curve; isotropic plane; pencil of conics; range of conics
Hrčak ID:
166452
URI
Datum izdavanja:
20.1.1999.
Posjeta: 901 *