TOT conf

geometry articles from International Tournament of Towns, Summer Conferences

 (all articles in English with solutions)

2006 - 2019

Inversions of the Feuerbach point, the poles of triangle and the Kulanin theorem (2019)
authors: PV Bibikov, MI Bidva, VD Popov, AA Shevtsov
proposed by: MI Bidva, PAKozhevnikov, II Frolov, AA Zaslavsky, OA Zaslavsky

Remarkable points of polygons (2018)
by B. Frenkin, P. Kozhevnikov, O. Zaslavsky, A. Zaslavsky

Fermat points and Euler lines (2017)
by N. Beluhov and A. Zaslavsky
presented by P. Kozhevnikov, D. Krekov, A. Zaslavsky and O. Zaslavsky.

The Nagel, Gergonne, and Feuerbach points and their properties (2016)
by A.Jakubov, M.Didin, P.Kozhevnikov, D.Krekov, A.Zaslavsky, O.Zaslavsky

Three classes of triangles (2015)
by A.Zaslavsky, O. Zaslavsky, F. Ivlev, P. Kozhevnikov, D. Krekov

On the Poncelet theorem (2014)
by G.Chelnokov, E.Diomidov, V.Kalashnikov, A.Zaslavsky

Brocard points (2013)
by A.Zaslavskiy, O.Zaslavskiy, P.Kozhevnikov, A.Akopyan

Webs from lines and circles (2012)
by A. Zaslavskiy, F. Nilov, A. Polyanskiy, M. Skopenkov

Strange propeties from strange condition (2011)
by F. Ivlev, V. Mokin, A. Zaslavskiy, O. Dmitriev, R. Genodarov

On isogonal conjugacy, Miquel points, (Newton-) Gauses lines, etc, (2010)
by Alexey Zaslavsky, Tatyana Emelyanova, Lev Emelyanov, Fedor Nilov, Fedor Ivlev

Excircles and Dozens of Points (2009)
by V. Filimonov and A. Zaslavsky

Three parabolas (2008)
by Alexey Zaslavsky, Fedor Nilov, Vladilsav Filimonov

Auxiliary conics (2007)
by A. Zaslavsky, A. Akopjan

Theorem on altitudes and the Jacobi identity (2006)
by S. Dorichenko and M. Skopenkov

Around the feet of bissectors  (2006)
by Emelyanov L., Emelyanova T.

sources:  www.turgor.ru/en/lktg , olympiads.mccme.ru/lktg