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Circular quartics in isotropic plane obtained as pedal curves of conics (CROSBI ID 541472)

Prilog sa skupa u zborniku | sažetak izlaganja sa skupa

Jurkin, Ema Circular quartics in isotropic plane obtained as pedal curves of conics // Abstracts of the 13th Scientific-Professional Colloquium on Geometry and Graphics. 2008. str. 14-14

Podaci o odgovornosti

Jurkin, Ema

engleski

Circular quartics in isotropic plane obtained as pedal curves of conics

The problem will be studied on the projective model of an isotropic plane with the absolute figure (f, F), F incident with f. A curve in the isotropic plane is circular if it passes through the absolute point F. Its degree of circularity is defined as the number of its intersection points with the absolute line f falling into the absolute point F. The pedal curve kN of a given curve k with respect to a conic q is the locus of the foot of the perpendicular to the tangent of the curve k from the pole of the tangent with respect to the conic q. There are four types of the pedal transformation. The conditions that the generating conic has to fulfill in order to obtain a circular quartic of certain type will be determined for each type by using the synthetic (constructive) method. It will be shown that it is possible to get only 2-, 3- and 4-circular quartics by pedal transformation.

circular curve; quartic; isotropic plane; pedal curve

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nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

nije evidentirano

Podaci o prilogu

14-14.

2008.

objavljeno

Podaci o matičnoj publikaciji

Abstracts of the 13th Scientific-Professional Colloquium on Geometry and Graphics

Podaci o skupu

Scientific-Professional Colloquium on Geometry and Graphics (13 ; 2008)

predavanje

07.09.2008-11.09.2008

Poreč, Hrvatska

Povezanost rada

Matematika