Selected international talks

• C*-algebras associated to (semi-)groups and their actions, Invited talk, Seminar on C*-algebras and related topics, University of Manchester, UK, November 2024.
• Cartan subalgebras, cp maps and their inductive limits, Invited talk, Cartan Subalgebras in Operator Algebras and Topological Full Groups, BIRS, Canada, November 2024.
• Amenability of essential inverse semigroup C*-algebras, Plenary speaker, SEmigroups, grOUpoids and C*-aLgebras, KIAS, Korea, July 2024.
• Roe algebras are rigid, Analysis Seminar, University of Glasgow, May 2024.
• Roe algebras are rigid, Analysis Seminar, Newcastle University, May 2024.
• Generalized (semigroup) dynamics and their C*-algebras, Joint Seminar in Semigroups and Dynamical Systems, University of Manchester, May 2024.
• Amenability notions and Fell bundles, Combinatorial *-algebras, MFO, Oberwolfach, March 2024.
• Dynamical systems and nuclear C*-algebras, Victoria University in Wellington, November 2023.
• Nuclear C*-algebras and amenable groupoids, University of Wollongong, November 2023.
• Generalized dynamics yielding nuclear C*-algebras, Seminar, University of Southern Denmark, September 2023.
• Large-scale geometry of group-like objects, Colloquium, University of Göttingen, May 2023.
• Minicourse on C*-algebras, their diagonals and (inverse) semigroup actions, Topics in Geometric Semigroup Theory, University of York, June 2022.
• Inverse semigroups of asymptotic dimension 0 and their uniform Roe algebras, Topics in Geometric Semigroup Theory, University of York, June 2022.
• Exactness and geometric properties of inverse semigroups, Non-commutativity in the North, Göteborgs Universitet, March 2022 (slides).
• C* vs. coarse properties of inverse semigroups, Analysis seminar, University of Glasgow, October 2021 (slides).
• C* and geometric properties of inverse semigroups, NYC online non-commutative geometry seminar, October 2021 (slides).
• Inverse semigroups, their non-group-like geometries and their amenability and property A, Web-seminar de Algebras de Operadores, Universidade de Santa Catalina, September 2021 (slides).
• Schützenberger graphs and property A, or how to see exactness of the reduced C*-algebra, C*-algebras and geometry of groups and semigroups, University of Oslo, March 2021 (slides).
• Amenability and coarse geometry of (inverse) semigroups and C*-algebras, thesis defense at UC3M and ICMAT, Spain, March 2021 (slides).
• Non-group like metrics appearing in group-like objects, UK Virtual Operator Algebras Seminar, United Kingdom, December 2020 (slides).
• Some quasi-isometric invariants for inverse semigroups, Online semigroup seminar, University of York, April 2020 (slides).
• Coarse geometry and inverse semigroups, Colloquium in the math department of University of Montana, November 2019 (slides).
• Traces in inverse semigroup Roe algebras, YMC*A, University of Copenhagen, August 2019
• Amenability in inverse semigroups, SandGAL-2019, Cremona, July 2019 (slides).
• Amenability in inverse semigroups and C*-algebras, II Joint Meeting Brazil-Spain in Mathematics, Cádiz, December 2018 (slides).

Some local seminar talks

• Z-stability of Hausdorff étale groupoids, Kleines seminar in the University of Münster, December 2022.
• An overview of classification, Kleines seminar in the University of Münster, December 2022.
• Geometric aspects of semigroups and their C*-algebras, Postdoc colloquium in the University of Münster, November 2022.
• The D-m invariant, Reading seminar on Cantor minimal systems in the University of Münster, June 2022.
• Invariance of entropy under Shannon orbit equivalence for p.m.p. actions of the integers, Reading seminar on entropy theory in the University of Münster, June 2022.
• The Boutonnet-Houdayer non-commutative Nevo-Zimmer Theorem, part 2, Kleines seminar in the University of Münster, January 2022.
• Three properties from three perspectives of inverse semigroups, University of Münster, October 2021.
• Inverse semigroups as a framework for quasi-diagonality, University of Münster, October 2021.
• Amenability and coarse geometry of (inverse) semigroups and C*-algebras, thesis predefense, Q-math research group, UC3M, February 2021.
• Ultra-stuff, Júnior Seminar at ICMAT-UAM-UCM-UC3M, February 2021, Madrid, Spain
• An introduction to Connes' Embedding Problem, MIP*=Re online seminar, Technische Universität Munchën, Germany, December 2020 (notes).
• Quasi-diagonality vs amenability of discrete groups, Group theory seminar, UAM-ICMAT, March 2020.
• Quasi-diagonality and approximation of operators, Junior seminar, ICMAT-UAM-UCM-UC3M, March 2020.
• Amenability in inverse semigroups and C*-algebras, Q-math research group, UC3M-ICMAT 2018
• Esquemas piramidales y porqué deberíamos pagar menos por las naranjas, outreach talk (slides).