George Tsintsifas

The plane intersections of an ellipsoid

This is a paper about a characterization of a centrosymmetric convex figure

In this paper our aim is to present a method working in the inequalities between two triangles.

A Minkowski plane with a Radon curve as
unit circle. RandonEuclidean

Εισαγωγή στη Γεωμετρία Minkowski

Υπερβολική Γεωμετρία. Εφαρμογή της Υπερβολικής Γεωμετρίας στο μοντέλο του Poincaré

This is a book written in Greek on Geometrical Transformations with theory and problems.

This is a book on Plane Euclidean Geometry. Theorems and Problems.

pointsRelations

This is a paper about cutting numbers