Journal of Classical GEOMETRY

The Journal of Classical Geometry is a refereed electronic journal devoted to problems of classical Euclidean geometry. It is addressed for school teachers, advanced high-school students, and everyone with an interest in classical geometry. The journal values synthetic arguments, intelligibility and illustration.

The journal focuses on new results in triangle geometry, geometry of conics, non-Euclidean and elementary combinatorial geometry. New synthetic proofs for known facts and interesting unsolved problems are also welcome.

Volume 1 (2012)

Order the paper version

1. Ilya I. Bogdanov, Two theorems on the focus-sharing ellipses: a three-dimensional view, pp. 1-5.
Abstract    Article

2. Alexey A. Pakharev, On certain transformations preserving perspectivity of triangles, pp. 6-16.
Abstract    Article

3. Lev A. Emelyanov and Pavel A. Kozhevnikov, Isotomic similarity, pp. 17-22.
Abstract    Article

4. Arseniy V. Akopyan, Conjugation of lines with respect to a triangle, pp. 23-31.
Abstract    Article

5. Nguyen Minh Ha, A proof of Vittas’ Theorem and its converse, pp. 32-39.
Abstract    Article

6. Darij Grinberg, Ehrmann’s third Lemoine circle, pp. 40-52.
Abstract    Article

7. Nikolai Ivanov Beluhov, An elementary proof of Lester’s theorem, pp. 53-56.
Abstract    Article

8. Dmitry S. Babichev, Circles touching sides and the circumcircle for inscribed quadrilaterals, pp. 57-61.
Abstract    Article

9. Vladimir N. Dubrovsky, Two applications of a lemma on intersecting circles, pp. 62-64.
Abstract    Article

10. Alexey A. Zaslavsky, Geometry of Kiepert and Grinberg–Myakishev hyperbolas, pp. 65-71.
Abstract    Article

11. Problem section, pp. 72-74. pdf

12. Geometrical olympiad in honor of I.F. Sharygin, pp. 75-86. pdf

DOWNLOAD the whole volume:pdf.
WEBSITE ORIGINAL
http://jcgeometry.org/articles.php