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 7th  International Youth Conference "Tinchurin readings", Title of talk:  ''Representations of  semigroup Z+\{1}'', Kazan, Russia  2012.

 ''Non-commutative geometry and quantum groups'',  Title of talk:  ''Isometric representations of totally ordered semigroups'', Oslo, Norway, June  2012.

''24th  International  Conference  on  Operator  Theory'',  Title  of  talk:  ''Inverse representations  of  subsemigroups  of  semigroup  Z+ '',   Timisoara,  Romania,  July 2012.

XI  Youth School-Conference "Lobachevski readings-2012",  Title  of  talk: ''Extensions  of  Toeplitz  algebra '' , Kazan, Russia, November  2012.

Workshop on “C*-algebras and Non-commutative dynamics”, March 11-14, Sde Boker, Israel, 2013.

Spring School on “Group C*-algebras”, March 17-21, Sde Boker, Israel, 2013.