Wybrane problemy zadań konstrukcyjnych na płaszczyźnie euklidesowej i wykorzystanie do ich rozwiązywania twierdzeń geometrii rzutowej

Ewa Lubaś

Abstract


The article gives examples of construction tasks of first and second degree on a Euclidean plane, which can be solved with the use of a simple ruler. For this purpose, the theoretical backgrounds of projective geometry have been used. It has been proved that in the projective approach some constructions on a Euclidean plane become linear constructions. In particular, a linear construction of this type may be the typical operation of inversion in respect of a circle and an arbitrary conic as well as its generalization, which in reference literature is known under the name of Hirst transformation.

References


Четверухин, Н. Ф.: 1969, Проективная геометрия, Издательство Просвещение, Москва.

Fudali, S.: 1989, Geometria, Wydawnictwo Naukowe Uniwersytetu Szczecińskiego, Szczecin.

Комиссарук, А. М.: 1971, Проективная геометрия в задачах, Вышейшая школа, Минск.

Pedoe, D.: 1963, An Introduction to Projective Geometry, Pergamon Press, Oxford-London-New York-Paris.

Wieleitner, H.: 1919, Algebraische Kurven. Teil I, II, Walter de Gruyter & Co, Berlin.


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