Invited Lectures at Conferences, Seminars and Workshops:

• Canadian Mathematical Society (CMS) winter meeting, Waterloo, Canada, December 2017; “Hom-Associative Group Cohomology”.

• Conference on Noncommutative Geometry and Physics, Perimeter Institute for Theoretical Physics , Waterloo, Canada, fall 2015; “Cyclic Cohomology of Hom-associative algebras”.

• Workshop of Non-Commutative Geometry and its Applications, University of Western Ontario, Canada, June 2015; “Non-associative non-commutative geometry and cyclic homology of Hom-algebras”.

• Non-Commutative Geometry Seminar University of Western Ontario, Canada, April 2014; “On representation theory of integrals for Hopf algebras”.

• Analysis and Non-Commutative Geometry Seminar, Institute for Studies in Theoretical Physics and Mathematics (IPM), Tehran, Iran, May 2014; “Integral theory for Hopf algebras”.

• Focus Program in Non-Commutative Geometry and Quantum Groups, Fields Institute, Toronto, Canada, June 2013; “New Coefficients for Hopf cyclic cohomology”.

• Algebra Seminar, Series of 12 Lectures in Hopf algebras and cyclic cohomology, University of Windsor, Canada, fall 2012 and winter 2013.

• Analysis and Non-commutative Geometry Seminar, Institute for Studies in Theoretical Physics and Mathematics, (IPM) , Tehran, August 5 and 6, 2012, Series of 4 lectures in noncommutative geometry, Hopf algebras, Hopf cyclic cohomology and Hopf Galois extensions.

• Séminaire d’Algèbres d’Opérateurs, Institut de Mathematiques de Jussieu, Paris, France, February 2012; “Hopf Galois objects in noncommutative geometry”.

• Non-Commutative Geometry Seminar, University of Western Ontario, Canada, November 2011; “Generalized coefficients for Hopf cyclic cohomology”.

• Noncommutative geometry days in Istanbul, Mathematics department, Bahcesehir University, Istanbul, Turkey, June 2011; “Hopf Galois extensions and coextensions”.

• Non-commutative Geometry Seminar, University of New Brunswick, Fredericton, Canada, January and February 2011; “A trip on Noncommutative geometry”.

• Algebra seminar, York University, Toronto, Canada, December 2010; “Hopf algebras and Hopf cyclic cohomology in noncommutative geometry”.

• Canadian Mathematical Society (CMS) meeting, Fredericton, Canada, June 2010; “Cup-coproducts in Hopf Cyclic Cohomology”.

• Society of Graduate Studies Annual Research Forum, University of Western Ontario, London, Canada, February 2010; “What is noncommutative geometry”.

• Noncommutative Geometry Seminar, University of Western Ontario, London, Canada, November 2009; “Cup products in Hopf cyclic Cohomology”.

• Noncommutative Geometry Seminar, (3 lectures), University of Western Ontario, Canada, November 2008; “Eilenberg – Zilber and Kunneth formula for (co)cyclic modules”.