Q−spherical surfaces in Euclidean space


Sonja Gorjanc, Ema Jurkin




In this paper we define q-spherical surfaces as the surfaces that contain the absolute conic of the Euclidean space as a q−fold curve. Particular attention is paid to the surfaces with singular points of the highest order. Two classes of such surfaces, with one and two n−fold points, are discussed in detail. We study their properties, give their algebraic equations and visualize them with the program Mathematica.