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George Tsintsifas

mathematics & photography

George Tsintsifas


Main Interests:
Geometry, Convexity and Photography

Categories

  • Mathematics
  • Photography

Archives

  • March 2024
  • July 2022
  • August 2020
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  • June 2019
  • January 2019
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  • October 2018
  • May 2017
  • March 2017
  • October 2016
  • September 2016
  • April 2016
  • March 2016
  • February 2016
  • January 2016
  • December 2015
  • October 2015
  • April 2015
  • September 2014
  • August 2014
  • May 2014
  • April 2014
  • January 2014
  • December 2013
  • November 2012
  • June 2012
  • May 2012
  • May 2011
  • November 2008
  • April 2008
  • March 2008
  • January 2008
  • June 2007
  • March 2007
  • February 2007
  • January 2007
  • November 2006
  • October 2006
  • September 2006

The autumn leaves

autom

Posted on September 29, 2016September 29, 2016Categories Uncategorized

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no-title

Posted on September 27, 2016September 27, 2016Categories Photography

The red boat

the-boat

Posted on September 13, 2016September 13, 2016Categories Uncategorized

The Market

dsc01002-copy

Posted on September 13, 2016September 13, 2016Categories Photography

The inequality (condition) of Hadwiger.

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

Posted on September 13, 2016September 13, 2016Categories Uncategorized

The vector relative to simplex

A new glance to John’s Matrix

Posted on April 10, 2016Categories Uncategorized

Το πρόβλημα των Fermat-Toricely

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

Posted on April 1, 2016Categories Uncategorized

A problem of Geometry

Cauchy-Schwarz Inequality in Geometry

Posted on March 28, 2016Categories Uncategorized

Six points Property

Another proof about the problem of P.Erdos

Posted on March 12, 2016March 12, 2016Categories Uncategorized

The perimeters of the cevian and pedal triangle

The perimeter of the Cevian triangle of a point M in a triangle ABC, is no smaller of the perimeter of the pedal triangle of the point M.

Posted on February 3, 2016Categories Uncategorized

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