(7 & 8 March 2025) Lecture series on the Cuntz semigroup and its dimension (parts III and IV), Research Center for Operator Algebras (East China Normal University - Online).

(28 February & 1 March 2025) Lecture series on the Cuntz semigroup and its dimension (parts I and II), Research Center for Operator Algebras (East China Normal University - Online).

(30 January 2025) Strict comparison for non-simple reduced group C*-algebras, 4th Barcelona Weekend on Operator Algebras, Centre de Recerca Matemàtica (Barcelona).

(18 September 2025) An introduction to the Global Glimm Problem, Göteborg Operator Algebra seminar, Gothenburg University & Chalmers.

(11 September 2025) An introduction to the Global Glimm Problem, Mini Course: Topological Phenomena in the Cuntz semigroup, University of Oxford.

(28 July 2025) Z-stability for twisted group C*-algebras of nilpotent groups, Mini-workshop Operator Algebras and Applications, University of Erlangen-Nuremberg.

(24 July 2025) The Global Glimm Problem, Summer school Structure and Approximation of C*-algebras, Universidad Internacional Menéndez y Pelayo.

(24 June 2025) Z-stability for twisted group C*-algebras of nilpotent groups, Oberseminar C*-algebras, Westfälische Wilhelms-Universität Münster.

(19 June 2025) Z-stability for twisted group C*-algebras of nilpotent groups, Structure of Dynamical C*-algebras, Jaca (Universidad de Zaragoza).

(29 May 2025) Z-estabilidad para C*-álgebras de cociclos de grupos nilpotentes, AGATA, Universidad Nacional Autónoma de México (Cuernavaca).

(21 May 2025) Analogías entre topología y C*-álgebras, colloquium at Instituto de Matemáticas, Universidad Nacional Autónoma de México (Cuernavaca).

(6 May 2025) Z-stability for twisted group C*-algebras of nilpotent groups, Functional Analysis Seminar, University of Oxford.

(30 April 2025) Z-stability for twisted group C*-algebras of nilpotent groups, Scandinavian Operator Algebra Workshop, Gothenburg University & Chalmers.

(20 March 2025) The realization problem, Göteborg Operator Algebra Seminar, Gothenburg University & Chalmers.

(22 November 2024) Gabor frames, twisted group C*-algebras and the Toms-Winter conjecture, Swedish Mathematical Society Meeting, Umeå.

(20 May 2024) Pure *-homomorphisms, Oberwolfach Seminar: "Classification of C*-Algebras and Dynamics", Oberwolfach Research Institute for Mathematics.

(15 May 2024) Pure C*-algebras and *-homomorphisms, C*-algebra seminar, University of Oslo.

(30 April 2024) Pure C*-algebras and *-homomorphisms, Operator Algebras Seminar, University of Southern Denmark (Odense).

(19 March 2024) Pure C*-algebras and *-homomorphisms, Ring Theory seminar, Universitat Autònoma de Barcelona.

(7 March 2024) Pure C*-algebras and *-homomorphisms, Göteborg Operator Algebra Seminar, Gothenburg University & Chalmers.

(27 February 2024) Nowhere scattered multiplier algebras, Analysis & Probability Seminar, Gothenburg University & Chalmers.

(21 February 2024) Pure C*-algebras and *-homomorphisms, Groups and Operator Algebras, University of Copenhagen.

(1 December 2023) Nowhere scattered C*-algebras, Analysis seminar, University of Ottawa - Carleton University.

(1 August 2023) Covering dimension for Cuntz semigroups, the Fields Institute.

(1 August 2023) The Global Glimm Problem, the Fields Institute.

(13 July 2023) Soft C*-algebras, the Fields Institute.

(13 July 2023) An introduction to the Cuntz semigroup, the Fields Institute.

(9 May 2023) Nowhere scattered multiplier algebras, Ring Theory seminar, Universitat Autònoma de Barcelona.

(13 April 2023) Divisibility properties for Cuntz semigroups, Gruppen- und Operatoralgebren-Treffen, University of Potsdam.

(13 March 2023) Soft and nowhere scattered C*-algebras, PG Forum, Lancaster University (Online).

(6 March 2023) Soft elements in a C*-algebra, NCG&T Seminar, Institute of Mathematics CAS (Prague).

(16 February 2023) Analogías entre topología y C*-álgebras, Seminario Rubio de Francia, Instituto Universitario de Matemáticas y Aplicaciones (Zaragoza).

(28 January 2023) Soft C*-algebras, 3rd Barcelona Weekend on Operator Algebras, Centre de Recerca Matemàtica (Barcelona).

(19 December 2022) Low-dimensional C*-algebras, Ring Theory seminar, Universitat Autònoma de Barcelona.

(16 November 2022) C*-algebras and the Elliott classification program, Seminari Informal de Matemàtiques, Centre de Recerca Matemàtica (Barcelona).

(20 September 2022) The Global Glimm Problem, Workshop 'Cuntz semigroups' 2022,  University of Kiel.

(7 September 2022) An introduction to the Cuntz semigroup, BMS-BGSMath Junior Meeting, Universitat de Barcelona.

(8 August 2022) The Global Glimm Problem, YMC*A, University of Oslo.

(19 July 2022) The Global Glimm Problem, BKOAS (Online).

(31 May 2022)  Nowhere scatteredness and the Global Glimm Problem, Oberseminar Analysis, University of Kiel.

(2 May 2022)  Nowhere scatteredness and the Global Glimm Problem, Ring Theory seminar, Universitat Autònoma de Barcelona.

(29 March 2022) Nowhere scatteredness and the Global Glimm Problem, NCG&T Seminar, Institute of Mathematics CAS (Prague).

(8 February 2022) Nowhere scattered C*-algebras, Functional Analysis Seminar, University of Oxford (Online).

(1 December 2021)  Covering dimension for Cuntz semigroups, North Atlantic NCG seminar (Online).

(26 November 2021) Cuntz semigroups and their abstract counterparts, NCG Student Seminar, IMPAN (Online).

(22 November 2021) Covering dimension for Cuntz semigroups, Ring Theory seminar, Universitat Autònoma de Barcelona.

(12 July 2021)  Covering dimension of Cuntz semigroups, Workshop 'Cuntz semigroups' 2021, Westfälische Wilhelms-Universität Münster.

(21 June 2021) An introduction to the Cuntz semigroup, PG Forum, Lancaster University (Online).

(18 & 25 March 2021) The range problem for the Cuntz semigroup of AI-algebras (2 session talk), Ring Theory seminar, Universitat Autònoma de Barcelona.

(28 November & 5 December 2019) The real rank of uniform Roe algebras  (2 session talk), Ring Theory seminar, Universitat Autònoma de Barcelona.

(21 - 30 May 2025) Universidad Nacional Autónoma de México (Cuernavaca)

(5 - 9 May 2025) University of Oxford

(13 - 17 May 2024) University of Oslo

(11 - 22 March 2024) Universidad de Zaragoza & Universitat Autònoma de Barcelona

(19 - 23 February 2024) University of Copenhagen

(6 - 10 March 2023) Institute of Mathematics CAS (Prague)

(13 - 17 February 2023) Universidad de Zaragoza

(30 May - 4 June 2022) University of Kiel

(21 - 30 March 2022) Institute of Mathematics CAS (Prague)

(11 - 25 July 2021) Westfälische Wilhelms-Universität Münster, during the Focus Programme "Operator algebras and topological dynamics: amenability and beyond".

(30 - 31 January 2026) 4th Barcelona Operator Algebra Weekend, Centre de Recerca Matemàtica, Barcelona.

(23 - 24 September 2025) Scandinavian Operator Algebra Workshop, University of Southern Denmark, Denmark.

(10 - 12 September 2025) Mini Course: Topological Phenomena in the Cuntz semigroup, University of Oxford, UK.

(28 - 30 July 2025) Mini-workshop Operator Algebras and Applications, Erlangen, Germany.

(21 - 25 July 2025) Summer school Structure and Approximation of C*-algebras, Santander, Spain.

(16 - 20 June 2025) Workshop Structure of Dynamical C*-algebras, Jaca, Spain.

(29 - 30 April 2025)  Scandinavian Operator Algebra Workshop, Gothenburg Univeristy & Chalmers, Gothenburg.

(22 November 2024) Swedish Mathematical Society Meeting, Umeå.

(17 - 20 June 2024) Noncommutativity in the North - Mikaelfest, Gothenburg Univeristy & Chalmers, Gothenburg (as an organizer).

(20 - 24 May 2024) Oberwolfach Seminar: Classification of C*-Algebras and Dynamics, Oberwolfach.

(1 July - 31 December 2023) Thematic Program on Operator Algebras and Applications, Fields Institute, Toronto.

(27 - 28 January 2023) 3rd Barcelona Weekend on Operator Algebras, CRM, Barcelona.

(19 - 23 September 2022) Workshop 'Cuntz semigroups' 2022,  Kiel University.

(5 - 7 September 2022) BMS-BGSMath Junior Meeting, Universitat de Barcelona.

(8 - 12 August 2022) YMC*A, University of Oslo, Norway.

(25 - 30 June 2022) C*-dynamics and Set Theory in Paris 2022, Summer School, Paris.

(2021 - 2022) Barcelona-Kiel Operator Algebra Seminar, biweekly seminar sessions (Online).

(2 - 13 August 2021) YMC*A, Westfälische Wilhelms-Universität Münster (Online).

(12 - 16 July 2021) Workshop 'Cuntz semigroups' 2021, Westfälische Wilhelms-Universität Münster.

(10 - 14 May 2021) Great Plains Operator Theory Symposium, Washington University (Online).

(2020 - 2021) UK Virtual Operator Algebras Seminar, biweekly seminar sessions (Online).

(10 - 14 August 2020) Special Week on Operator Algebras, East China Normal University (Online).

(29 - 30 June 2020) Zagreb Workshop on Operator Theory, University of Zagreb (Online).

(19 - 21 September 2019) 2nd Barcelona Weekend on Operator Algebras, Universitat Autònoma de Barcelona.

(2019 - 2021) Ring Theory seminar, Universitat Autònoma de Barcelona.