A notion of almost finiteness for C*-dynamical systems and categorical crossed products, C*-days in Prague, May 30-June 1, 2023.
An introduction to the modern theory of Cuntz semigroups (joint mini-course with Eusebio Gardella), Workshop Cuntz Semigroups 2022, Kiel University, September 19-23, 2022.
A notion of almost finiteness for C*-dynamical systems and its relation to dynamical strict comparison, The 17th Special Week on Operator Algebras, East China Normal University, August 1-5, 2022.
General quotient Cuntz semigroups and dynamical Cuntz semigroups, Worskhop Cuntz Semigroups 2021, Münster Universität, July 12-16, 2021.
Ultraproducts of C*-algebras, their Cuntz semigroups, and their (quasi)traces, International Conference in the Thematics Research Program: Operator Algebras, Groups, and applications to Quantum Information, June 17-21, 2019, ICMAT (Madrid).
C*-algebras of stable rank one and their Cuntz semigroup, Research school on evolution algebras and non associative algebraic structures, October 15-17, 2018, Universidad de Málaga.
Existence of infima in the Cuntz semigroup and applications to the structure of C*-algebras with stable rank one, IWOTA 2018, July 23-27, Shanghai.
The Cuntz semigroup as an invariant for C*-algebras, Mini-workshop on the Cuntz semigroup, June 18-20, 2018, University of Houston.
The dynamical Cuntz semigroup: some categorical aspects, Future targets in the classification program for amenable C*-algebras, September 4-8, 2017, BIRS (Banff).
The category of Cuntz semigroups, Czech-Slovenian-Austrian-Slovak-Catalan Mathematical Societies Meeting, Session on Applications of Categories in Algebra and Topology, September 20-23, 2016, IEC (Barcelona).
Near unperforation, almost unperforation, and almost algebraic order, Workshop on Classification and Dynamical Systems I, February 22-26, 2016, Mittag Leffler Institute (Stockholm).
Near unperforation for Z-stable C*-algebras, First Joint Meeting Brazil-Spain in Mathematics, Special Session in Operator Algebras, December 7-10, 2015, Fortaleza (Brazil).
Abstract bivariant Cuntz semigroups, Workshop on C*-algebras: Geometry and Actions, Focus Programme in C*-algebras, July 13-17, 2015, Münster Universität.
Tensor products in the category Cu and structure of Cu-semirings, Classification, Structure, Amenability, and Regularity Conference, September 1-5, 2014, University of Glasgow.
The Cuntz semigroup and its impact into classification, First Joint International Meeting RSME-SCM-SEMA-SIMAI-UMI, Special Session on Operator Algebras and Applications to Quantum Physics, June 30- July 1, 2014, Universidad del País Vasco (Bilbao).
Structural aspects of the category Cu, Workshop on C*-algebras and dynamical systems, June 16-20, 2014, The Fields Institute (Toronto).
Geometric structure of dimension functions of certain continuous fields, Classifying structures for Operator Algebras and Dynamical Systems, September 16-20, 2013, University of Aberystwyth.
Geometric structure of dimension functions on some C(X)-algebras, Graph algebras: Bridges between Leavitt path algebras and graph C*-algebras, April 21-26, 2013, BIRS (Banff).
Regularity properties of the Cuntz semigroup, The structure and classification of nuclear C*-algebras, April 15-19, 2013, ICMS (Edinburgh).
Semigroup valued lower semicontinuous functions (with applications to the Cuntz semigroup), Classification of amenable C*-algebras, September 19-24, 2010, BIRS (Banff).
Monoids of lower semicontinuous functions with applications to the Cuntz semigroup, Workshop on C*-algebras, September 7-10, 2010, The University of Nottingham.
The Cuntz semigroup, the corona factorization property, and completions of semigroups, Masterclass on the Classification of C*-algebras, November 16-27, 2009, University of Copenhagen.
Purely infinite corona algebras and the corona factorization property, Workshop on the Cuntz semigroup, November 2-6, 2009, AIM (Palo Alto).
The Cuntz semigroup and its impact into classification, II Encuentro Ibérico, October 3-5, 2008, Universidad de Extremadura.
Purely infinite corona algebras of simple stable C*-algebras, International Conference on Operator Algebras and Applications in Morocco, April 14-18, 2008, Marrakech.
Representing semigroups as semigroups of projections of C*-algebras, Workshop on Structure of C*-algebras, November 12-16, 2007, The Fields Institute (Toronto).
The quest for algebraic analogues: extremal richness, the QB-property, and non-stable K-theory, Symposium honoring the memory of G. K. Pedersen, April 29 to May 1, 2005, University of Copenhagen.
Multiplier algebras have algebraic cousins, 2nd Oresund Meeting in Non-commutative Analysis and Non-commutative Geometry, May 2, 2003, University of Copenhagen.
A closure operation in rings, 8th Danish-Norwegian Meeting on Operator Algebras, August 2001, Lysebu.
Extremally rich C*-algebras and their algebraic relatives, Symposium in honour of G. K. Pedersen’s 60th anniversary, May 2000, The Carlsberg Academy (Copenhagen).
Algebraic aspects in the classification of C*-algebras, C*-algebras at Queen’s, May 1999, Queen’s University Belfast.
Communications
Almost elementary dynamical systems, C*-dynamics and Set Theory in Paris, August 1-5, 2022.
The Cuntz semigroup and the category Cu, TACL 2017, June 26-30, Praha,
Inverse limits of rings and multiplier rings, British Mathematical Colloquium, April 2004, Queen’s University Belfast.
Límites inversos de anillos y anillos de multiplicadores, Octavas Jornadas Españolas en Teoría de Anillos, Febrere 2004, Universidad de Oviedo.
The exchange property for Gromov translation algebras, Algebras, Rings, and Modules, July 2003, University of Lisbon.
Analysing the ideal lattice of C*-algebras with real rank zero via AF algebras, Noncommutative Geometry and Operator Algebras, May 2003, University College Cork.
Non-stable K-Theory and index theory for exchange rings and QB-rings, Algebra Conference, June 2002, Venice.
Stable finiteness of group rings in arbitrary characteristic, All Ireland Algebra Days, May 2001, Queen’s University Belfast.
Finitud estable para anillos de grupo en característica arbitraria, Sextas Jornadas Españolas en Teoría de Anillos, April 2001, Universidad de Almería.
Index Theory for exchange rings and C*-algebras with real rank zero, C*-algebras at Queen’s and North British Functional Analysis Seminar, May 2001, Queen’s University Belfast.
Teoría del índice para anillos de intercambio, Quintas Jornadas Españolas en Teoría de Anillos, March 2001, Universidad de Cádiz.
Extremal richness of multiplier and corona algebras for some simple C*-algebras with real rank zero, C*-algebras and their invariants, August 1998, University of Copenhagen.
Anillos de multiplicadores y anillos regulares, Terceras Jornadas Españolas en Teoría de Anillos, June 1998, Universidad de Granada.
Multipliers of von Neumann regular rings and C*-algebras, Ring Theory and Representations of Algebras, January 1998, Universidad de Murcia.
Ideales de anillos de multiplicadores de anillos regulares y C*-álgebras, Segundas Jornadas Españolas en Teoría de Anillos, April 1997, Centre de Recerca Matemàtica (Barcelona).
Comparability relations for C*-algebras with real rank zero, Primeras Jornadas Españolas en Teoría de Anillos, April 1996, Universidad de Murcia.
