Click on the title of the talk to download the slides, where available.

- “The computational complexity theory of membrane systems”, seminar at Laboratoire I3S, Université Nice Sophia Antipolis, France. November 2015.
- (with Luca Manzoni) “Dynamics of reaction systems”, seminar at Dipartimento di Informatica, Sistemistica e Comunicazione, Università degli Studi di Milano-Bicocca, Italy. October 2015.
- “Space complexity of membrane systems”, Research Group on Natural Computing seminar, Universidad de Sevilla, Spain. February 2011.

- “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.
- “Solving a special case of the P conjecture using dependency graphs with dissolution”, 18th International Conference on Membrane Computing (CMC18), University of Bradford, UK. July 2017.
- “Closure under oracles of complexity classes for P systems”, 15th Brainstorming Week on Membrane Computing (BWMC 2017), Universidad de Sevilla, Spain. January 2017.
- (with Luca Manzoni) “A toolbox for simpler active membrane algorithms”, 15th Brainstorming Week on Membrane Computing (BWMC 2017), Universidad de Sevilla, Spain. January 2017.
- “Shallow non-confluent P systems”, 17th International Conference on Membrane Computing (CMC17), Università degli Studi di Milano-Bicocca, Italy. July 2016.
- “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.
- “P systems with hybrid sets”, 14th Brainstorming Week on Membrane Computing (BWMC 2016), Universidad de Sevilla, Spain. February 2016.
- “Simulating elementary active membranes, with an application to the P conjecture”, 15th International Conference on Membrane Computing (CMC15), Prague, Czech Republic. August 2014.
- “Fixed points and attractors of reaction systems”, Computability in Europe 2014 (CiE 2014), Budapest, Hungary. June 2014.
- “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.
- “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.
- “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.
- “Sublinear-space P systems with active membranes”, 13th International Conference on Membrane Computing (CMC13), Budapest, Hungary. August 2012.
- “P systems simulating oracle computations”, 12th International Conference on Membrane Computing (CMC12), Fontainebleau, France. August 2011.
- “P systems with elementary active membranes: Beyond NP and coNP”, 11th International Conference on Membrane Computing (CMC11), Friedrich-Schiller-Universität, Jena, Germany. August 2010.
- “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.
- “Do complexity classes for P systems have complete problems?”, 8th Brainstorming Week on Membrane Computing (BWMC 2010), Universidad de Sevilla, Spain. February 2010.
- “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.
- “Space complexity for P systems”, 7th Brainstorming Week on Membrane Computing (BWMC 2009), Universidad de Sevilla, Spain. Februrary 2009.