On the theorems of central axonometry. (English) Zbl 0898.51014

One of the important questions of central axonometry is to give a condition under which a central axonometric mapping is a central projection. The author proves that the condition given by E. Stiefel in his book ‘Lehrbuch der darstellenden Geometrie’, 3rd ed., Basel-Stuttgart (1971; Zbl 0031.28001) is a limiting case of the condition given by J. Szabó, H. Stachel and H. Vogel in their article [Sitzungsber., Abt. II, Österr. Akad. Wiss., Math.-Naturw. Kl. 203, 3-11 (1994; Zbl 0841.51013)].


51N05 Descriptive geometry
Full Text: EuDML EMIS