Geodesic

Volume 25 (2021) no. 1

Sommaire

Isoptic Ruled Surfaces of Developable Surfaces
p. 1-17
Space Kinematics and Projective Differential Geometry Over the Ring of Dual Numbers
p. 19-31
Similar Trapezoids on the Sides of a Triangle
p. 33-44
Tubular Surfaces of Finite Type Gauss Map
p. 45-52
Quadrigon Geometry: Circumscribed Squares and Van Aubel Points
p. 53-59
Generalizations of Fagnano's Problem
p. 61-69
On Pepe Trapezoids
p. 71-78
From M. C. Escher's Hexagonal Tiling to the Kiepert Hyperbola
p. 79-95
Isometric Billiards in Ellipses and Focal Billiards in Ellipsoids
p. 97-118
Some Properties of the García Reflection Triangles
p. 119-126
A Quadratic Mapping Related to Frégier's Theorem and Some Generalisations
p. 127-137
An Analysis of Vermeer's Perspective in Composition
p. 139-154