Here is a list of seminars and talks at conferences and workshops I have given. For many of them, the presentation slides are available.

*Natural computing models of unusual complexity*, 4ème demi-journée thèmatique « Calcul et complexité » du Pôle Calcul, Laboratoire d’Informatique et Systèmes, Marseille, France. September 2018. [slides]*Communication topologies in natural computing*, seminar of the CANA research group, Laboratoire d’Informatique et Systèmes, Marseille, France. April 2018. [slides]*Bio-inspired computation, communication topologies, and computational complexity*, seminar of the MDSC research group, Laboratoire d’Informatique, Signaux et Systèmes de Sophia Antipolis, France. March 2018. [slides]*The computational complexity theory of membrane systems*, seminar of the MDSC research group, Laboratoire d’Informatique, Signaux et Systèmes de Sophia Antipolis, France. November 2015. [whiteboard seminar]- (with Luca Manzoni)
*Dynamics of reaction systems*, seminar at Dipartimento di Informatica, Sistemistica e Comunicazione, Università degli Studi di Milano-Bicocca, Italy. October 2015. [slides] *Space complexity of membrane systems*, seminar of the Research Group on Natural Computing, Universidad de Sevilla, Spain. February 2011. [slides]

- (with Luca Manzoni)
*State sequences of interactive processes of reaction systems*, invited talk at the First International Workshop on Reaction Systems (WRS 2018), Università degli Studi di Milano-Bicocca, Italy. June 2018. [slides] *Generalised dependency graphs solving a special case of the P conjecture*, 16th Brainstorming Week on Membrane Computing (BWMC 2018), Universidad de Sevilla, Spain. January 2018. [slides]*Solving a special case of the P conjecture using dependency graphs with dissolution*, 18th International Conference on Membrane Computing (CMC18), University of Bradford, United Kingdom. July 2017. [slides]*Closure under oracles of complexity classes for P systems*, 15th Brainstorming Week on Membrane Computing (BWMC 2017), Universidad de Sevilla, Spain. January 2017. [slides]- (with Luca Manzoni)
*A toolbox for simpler active membrane algorithms*, 15th Brainstorming Week on Membrane Computing (BWMC 2017), Universidad de Sevilla, Spain. January 2017. [slides] *Shallow non-confluent P systems*, 17th International Conference on Membrane Computing (CMC17), Università degli Studi di Milano-Bicocca, Italy. July 2016. [slides]*P systems with hybrid sets*, Workshop on Membrane Computing (WMC 2016) at 15th International Conference of Unconventional Computation and Natural Computation (UCNC 2016), Manchester Metropolitan University, United Kingdom. July 2016. [slides]*P systems with hybrid sets*, 14th Brainstorming Week on Membrane Computing (BWMC 2016), Universidad de Sevilla, Spain. February 2016. [slides]*Simulating elementary active membranes, with an application to the P conjecture*, 15th International Conference on Membrane Computing (CMC15), Prague, Czech Republic. August 2014. [slides]*Fixed points and attractors of reaction systems*, Computability in Europe 2014 (CiE 2014), Budapest, Hungary. June 2014. [slides]*Enzymatic numerical P system using elementary arithmetic operations*, 14th International Conference on Membrane Computing (CMC14), Institute of Mathematics and Computer Science of the Academy of Sciences of Moldova. August 2013. [slides]*Flattening and simulation of asynchronous divisionless P systems with active membranes*, 14th International Conference on Membrane Computing (CMC14), Institute of Mathematics and Computer Science of the Academy of Sciences of Moldova. August 2013. [slides]*Simulating EXPSPACE Turing machines using P systems with active membranes*, 13th Italian Conference on Theoretical Computer Science (ICTCS 2012), Università degli Studi dell’Insubria, Italy. September 2012. [slides]*Sublinear-space P systems with active membranes*, 13th International Conference on Membrane Computing (CMC13), Budapest, Hungary. August 2012. [slides]*P systems simulating oracle computations*, 12th International Conference on Membrane Computing (CMC12), Fontainebleau, France. August 2011. [slides]*P systems with elementary active membranes: Beyond NP and coNP*, 11th International Conference on Membrane Computing (CMC11), Friedrich-Schiller-Universität, Jena, Germany. August 2010. [slides]*On a powerful class of non-universal P systems with active membranes*, 14th International Conference on Developments in Language Theory (DLT2010), University of Western Ontario, London, Canada. August 2010. [slides]*Do complexity classes for P systems have complete problems?*, 8th Brainstorming Week on Membrane Computing (BWMC 2010), Universidad de Sevilla, Spain. February 2010. [slides]*An efficient simulation of polynomial-space Turing machines by P systems with active membranes*, 10th Workshop on Membrane Computing (WMC10), Curtea de Argeș, Romania. August 2009. [slides]*Space complexity for P systems*, 7th Brainstorming Week on Membrane Computing (BWMC 2009), Universidad de Sevilla, Spain. Februrary 2009. [slides]