The shop-windows with boats

September 29th, 2016

shop-window

The girl near the white tower

September 29th, 2016

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The autumn leaves

September 29th, 2016

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September 27th, 2016

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The red boat

September 13th, 2016

the-boat

The Market

September 13th, 2016

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The inequality (condition) of Hadwiger.

September 13th, 2016

The Hadwiger’s condition determines the possibility to transporter a convex figure F1 in the interior of a convex figure  F0. A new proof.

The vector relative to simplex

April 10th, 2016

A new glance to John’s Matrix

Το πρόβλημα των Fermat-Toricely

April 1st, 2016

Θεωρούμε ένα σύνολο σημείων G. Πότε το άθροισμα των αποστάσεων σημείου Μ δοθείσης επιφάνειας Ε από τα σημεία  του  σημεισονόλου G γίνεται Ελάχιστο ??

A problem of Geometry

March 28th, 2016

Cauchy-Schwarz Inequality in Geometry