Geodesic
Desargues' Configuration in a Special Layout
Journal for geometry and graphics, Tome 7 (2003) no. 2, pp. 191-2 Cet article a éte moissonné depuis la source Heldermann Verlag

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A special case of Desargues' configuration will be discussed, where one triangle is inscribed into a conic and the other is circumscribed about the same conic. These two triangles are in a correspondence called a Desargues collineation KD. Three theorems have been formulated and proved. One of them characterizes the central collineation KD. In a Desargues collineation the base conic will be transformed into another conic. Different cases are discussed. In the case of a base circle the center of the collineation KD coincides with the Gergonne point.
Classification : 51M35, 51M05
Mots-clés : Desargues configuration, collineation 
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     author = {B. Wojtowicz},
     title = {Desargues' {Configuration} in a {Special} {Layout}},
     journal = {Journal for geometry and graphics},
     pages = {191--2},
     year = {2003},
     volume = {7},
     number = {2},
     url = {http://geodesic.mathdoc.fr/item/JGG_2003_7_2_JGG_2003_7_2_a5/}
}
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B. Wojtowicz. Desargues' Configuration in a Special Layout. Journal for geometry and graphics, Tome 7 (2003) no. 2, pp. 191-2. http://geodesic.mathdoc.fr/item/JGG_2003_7_2_JGG_2003_7_2_a5/