Խաչատուր Խաչատրյան

ISAAC conference on Complex analysis, Differential equations and Related topics. Yerevan, Armenia, 2002

International Workshop Global and Geometric Aspects of nonlinear PDE. Yerevan, Armenia, 2004

International Conference Harmonic Analysis and Approximations. Tsahkadzor, Armenia, 2005

Russian-Armenian Workshop Mathematical physics and Related topics. Yerevan, Armenia, 2006

Second Russian-Armenian Workhop Mathematical physics, complex analysis and Related topics, Russia, Moscow, Steklov Mathematical institute, 2008

International conference  Multivariate statistical analysis and Econometrics, Moscow, 2008