Լիպարիտ Տեփոյան

International conference Partial Differential Equations, July 24-28, 1995, Caputh, Germany

International Conference Harmonic Analysis and Approximations, II, September 11-18, 2002, Nor Amberd, Armenia

International Conference  Degenerate PDEs and Singular Geometries, University of Potsdam, 17-20 August, 2004, Germany

International Conference  Degenerate Partial Differential Equations, Weighted Spaces, and Applications to Mechanics, Vekua Institute of Applied Mathematics,14-16 September, 2005, Tbilisi, Georgia

First  international conference of Georgian Mathematical Union, 12-19 September,  2010, Batumi, Georgia

International Conference Geometric and Singular Analysis, 12-16 March, 2012, Potsdam, Germany

International Conference Stochastic and Analytic Methods in Mathematical Physics, 2-9 September, 2012, Yerevan, Armenia

International Conference Geometric and Singular Analysis, 25-29 March, 2013, Potsdam, Germany

Annual session of Armenian Mathematical Union, dedicated to 90 anniversary of Raphael Alexandryan, 29-31 May,  2013, Yerevan, Armenia

International Conference Geometric and Singular Analysis, 12-16 March, 2016, Potsdam, Germany