*Higher Kazhdan projections and the coarse Baum-Connes conjecture.*8ECM, Slovenia, 2021

*Higher Kazhdan projections, L²-Betti numbers, and Baum-Connes*conjectures. “Summer School in Operator Algebras”, Fields institute and the University of Ottawa, Online, 2021*Higher Kazhdan projections, L²-Betti numbers, and the coarse Baum-Connes conjecture.*“The 49th Canadian Operator Symposium”, Online, 2021*Higher Kazhdan projections, L²-Betti numbers, and the coarse Baum-Connes conjecture.*Conference “Great Plains Operator Theory Symposium”, Online, 2021*Higher Kazhdan projections, L²-Betti numbers, and the coarse Baum-Connes conjecture.*“Global Noncommutative Geometry seminar”, Online, 2021*Higher Kazhdan projections and Baum-Connes conjectures.*Conference “C*-algebras and geometry of groups and semigroups”, Online, 2021*Higher Kazhdan projections, L²-Betti numbers, and Baum-Connes conjectures.*“Young Researchers Colloquium”, IMPAN, Online, 2021*Higher Kazhdan projections and Baum-Connes conjectures.*GOBA online seminar, 2020*On the Baum-Connes assembly map for certain subgroups of affine groups.*IMPAN, Poland, 2020*The Baum-Connes assembly map via explicit examples*. Conference “Geometry and approximation”. TU Dresden, Germany, 2019*Simplicity and the unique trace property for some L*Nordfjordeid summer school 2019, Analysis-Geometry and PDE, Nordfjordeid, Norway, 2019^{p}-operator algebras,*The Baum-Connes assembly map via explicit examples.*International conference on Operator algebras, Groups and applications to quantum information, ICMAT, Madrid, Spain, 2019*On the Baum-Connes assembly map of some semi-direct products.*University of Waterloo, Canada, 2019*On the Baum-Connes assembly map via explicit examples.*University of Glasgow, Scotland, 2019*On the Baum-Connes assembly map via explicit examples.*University of Oslo, Norway, 2019*On the Baum-Connes assembly map via explicit examples.*Stockholm University, Sweden, 2019*An explicit proof of the Baum-Connes conjecture for F \wr F_n.*University of Geneva, Switzerland, 2019*On the Baum-Connes conjecture at the intersection of analysis, topology and geometry.*University of Neuchatel, Switzerland, 2018*Explicit Baum-Connes map for the wreath product of a finite with free group.*University of Orlean, France, 2018*The Baum-Connes conjecture for generalised lamplighter group revisited: An explicit approach.*Tohoku University, Sendai, Japan, 2017*From zero to the Baum-Connes conjecture in 60 minutes!.*University of Neuchâtel, Switzerland, 2017*Explicit Baum-Connes conjecture for some wreath products.*Banach Centre,

Warsaw, Poland, 2017*Explicit Baum-Connes assembly map for F \wr F_n. Part II: K-theory.*YMC*A, University of Copenhagen, Denmark, 2017*Explicit Baum-Connes assembly map for F \wr F_n. Part I: K-homology.*YMC*A, University of Copenhagen, Denmark, 2017*K-theory for the C*-algebra of the lamplighter group.*University of Münster, Germany, 2016

*K-theory for the C*-algebras of the classical Lamploghter groups.*University of French-Compte, Besancon, France, 2015*A recent result on C*-simplicity and the unique trace property.*University of Neuchatel, Switzerland, 2014*A simple approach to the simplicity of some L*Saarland University, Saarbrucken, Germany. 2014^{p}–operator algebras.*Simplicity of some L*Lund University, Sweden, 2013^{p}-operator crossed products.

*Commutators in operator algebras.*Ferdowsi University of Mashhad, Iran, 2011