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Manuel Delgado is an Associate Professor at the Faculty of Sciences of the University of Porto. He obtained his PhD degree and Aggregate title in Mathematics in 1997 and 2006, respectively. He was Director of the Research Centre in Mathematics of the University of Porto (CMUP) during 2013-2016 and is currently responsible for CMUP's Computational Mathematics research area. He was the Director of the joint PhD program in Mathematics of the Universities of Coimbra and Porto during the years 2020 and 2021. He supervised 1 PhD thesis and 3 MSc dissertations. His research interests moved from a relatively pure area of finite semigroups, with applications in theoretical computer science, to numerical semigroups, an area with some important known applications (namely in codding theory). He published about 25 papers in journals and some book chapters. He is interested in open-source mathematical software in the areas he does research: among the GAP packages made public, one on finite state automata and another on numerical semigroups are refereed GAP packages.
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Identification

Personal identification

Full name
MANUEL AUGUSTO FERNANDES DELGADO

Citation names

  • Delgado, Manuel
  • Delgado, M

Author identifiers

Ciência ID
221F-A77F-4067
ORCID iD
0000-0002-1935-9908
Google Scholar ID
https://scholar.google.com/citations?user=r6A6wp4AAAAJ&hl=
Scopus Author Id
7202169952

Email addresses

  • mdelgado@fc.up.pt (Professional)

Telephones

Telephone
  • (+351) 220402140 (Professional)

Addresses

  • Departamento de Matemática, Centro de Matemática (CMUP). Rua do Campo Alegre, s/n, 4169-007, Porto, Porto, Portugal (Professional)

Websites

Knowledge fields

  • Exact Sciences - Mathematics
Education
Degree Classification
2006
Concluded
 Matemática (Título de Agregado)
Universidade do Porto Faculdade de Ciências, Portugal
 Aprovado/Sem classificação
1997 - 1998
Concluded
 Matemática (Pós-doutoramento)
Laboratoire d'Informatique Algorithmique: Fondements et Applications, France

Université Paris 6 Faculté de Mathématiques, France
1992/10 - 1997/07/28
Concluded
 Matemática (Doutoramento)
Universidade do Porto Faculdade de Ciências, Portugal
"Métodos Profinitos na Teoria de Semigrupos Finitos" (THESIS/DISSERTATION)
 Aprovado por unanimidade
Affiliation

Science

Category
Host institution 		Employer
2023/05/02 - 2023/05/31 Visiting Researcher (Research) Université du Littoral Côte d'Opale - Site de Calais - Laboratoire de Mathématiques Pures et Appliquées Joseph Liouville, France
Université du Littoral Côte d'Opale Département de Mathématiques, France
2019/05/01 - 2019/07/15 Visiting Researcher (Research) Laboratoire de Mathématiques Pures et Appliquées Joseph Liouville, France
Laboratoire de Mathématiques Pures et Appliquées Joseph Liouville, France
2018/10/01 - 2019/04/30 Visiting Researcher (Research) IEMath - Instituto de Matemáticas de la Universidad de Granada, Spain
IEMath - Instituto de Matemáticas de la Universidad de Granada, Spain

Teaching in Higher Education

Category
Host institution 		Employer
2020/09/10 - Current Associate Professor (University Teacher) Universidade do Porto, Portugal
1997/09 - 2020/09/09 Assistant Professor (University Teacher) Universidade do Porto, Portugal

Positions / Appointments

Category
Host institution 		Employer
2019/08 - 2022/03 Steering Committee of the joint UC|UP Phd Program in Mathematics Universidade do Porto Faculdade de Ciências, Portugal
Universidade do Porto Faculdade de Ciências, Portugal
2015/11 - 2018/09 Member of the Scientific Council (FCUP) Universidade do Porto Faculdade de Ciências, Portugal
Universidade do Porto Faculdade de Ciências, Portugal
2013/02 - 2017/02 Director of R&D unit (CMUP) Universidade do Porto Faculdade de Ciências, Portugal
Centro de Matemática da Universidade do Porto, Portugal
2006/01 - 2007/12 Vice-President of the Pure Mathematics Department Universidade do Porto Faculdade de Ciências, Portugal
Universidade do Porto Faculdade de Ciências, Portugal
Projects

Contract

Designation Funders
2007/05/01 - 2010/08/31 Autómatos, Semigrupos e Aplicações
PTDC/MAT/65481/2006
Principal investigator
Universidade do Porto Centro de Matemática, Portugal

Universidade do Porto Faculdade de Ciências, Portugal
Fundação para a Ciência e a Tecnologia
Concluded

Other

Designation Funders
2022/12/02 - 2025/12/31 Monoids and affine semigroups
ProyExcel_00868
Researcher
Junta de Andalucía Consejería de Transformación Económica Industria Conocimiento y Universidades
Ongoing
2018/01 - 2020/12 Study and Applications of Numerical and Affine Semigroups
MTM2017-84890-P
Member of the Working Team
Universidad de Cádiz Facultad de Ciencias, Spain
 Gobierno de España Agencia Estatal de Investigación
2015/01 - 2017/12 Numerical and affine semigroups; generalizations and applications
MTM2014-55367-P
Member of the Working Team
Universidad de Granada Facultad de Ciencias, Spain
 Gobierno de España
Concluded
2005 - 2010 Automata: from Mathematics to Applications (AutoMathA)
AutoMathA
Researcher
Universidade do Porto, Portugal
 European Science Foundation
Concluded
Outputs

Publications

Book chapter
  1. Delgado, Manuel. "Conjecture of Wilf: A Survey". In Springer INdAM Series, 39-62. Springer International Publishing, 2020.
    10.1007/978-3-030-40822-0_4
  2. Delgado, Manuel; Morais, José. "On the GAP Package sgpviz". In Lecture Notes in Computer Science, 403-406. Springer Berlin Heidelberg, 2006.
    10.1007/11832225_40
  3. Delgado, M.; Fernandes, V. H.. "Abelian kernels, solvable monoids and the abelian kernel length of a finite monoid". In Semigroups and Formal Languages. 2004.
    10.1142/9789812702616_0005
Conference paper
  1. Delgado, M.; Morais, J.. "Approximation to the smallest regular expression for a given regular language". Paper presented in CIAA 2004: Implementation and Application of Automata, 2005.
    Published • 10.1007%2F978-3-540-30500-2_31
  2. Delgado, Manuel; Masuda, A.; Steinberg, B.. "Solving systems of equations modulo pseudovarieties of abelian groups and hyperdecidability". Paper presented in Semigroups and Formal Languages, 2005.
    10.1142/9789812708700_0005
Journal article
  1. Delgado, M.; Eliahou, S.; Fromentin, J.. "A verification of Wilf's conjecture up to genus 100". Journal of Algebra 664 (2025): 150-163. http://www.scopus.com/inward/record.url?eid=2-s2.0-85208218120&partnerID=MN8TOARS.
    10.1016/j.jalgebra.2024.10.028
  2. Cisto, C.; Delgado, M.; Garciá-Sánchez, P.A.. "Algorithms for generalized numerical semigroups". Journal of Algebra and its Applications (2020): http://www.scopus.com/inward/record.url?eid=2-s2.0-85082404674&partnerID=MN8TOARS.
    10.1142/S0219498821500791
  3. Delgado, M.. "On a question of Eliahou and a conjecture of Wilf". Mathematische Zeitschrift 288 1-2 (2018): 595-627. http://www.scopus.com/inward/record.url?eid=2-s2.0-85019181931&partnerID=MN8TOARS.
    10.1007/s00209-017-1902-3
  4. Delgado, M.; García-Sánchez, P.A.; Robles-Pérez, A.M.. "Numerical semigroups with a given set of pseudo-Frobenius numbers". LMS Journal of Computation and Mathematics (2016): 186-205. http://www.scopus.com/inward/record.url?eid=2-s2.0-84973904940&partnerID=MN8TOARS.
    10.1112/S1461157016000061
  5. Delgado, M.; García-Sánchez, P.A.. "Numericalsgps, a GAP package for numerical semigroups". ACM Communications in Computer Algebra 50 1 (2016): 12-24. http://www.scopus.com/inward/record.url?eid=2-s2.0-84968739621&partnerID=MN8TOARS.
    10.1145/2930964.2930966
  6. Delgado, M.; Farran, J.I.; Garcia-Sanchez, P.A.; Llena, D.. "On the weight hierarchy of codes coming from semigroups with two generators". IEEE Transactions on Information Theory 60 1 (2014): 282-295. http://www.scopus.com/inward/record.url?eid=2-s2.0-84891503204&partnerID=MN8TOARS.
    10.1109/TIT.2013.2285217
  7. Delgado, M.; Farrán, J.I.; García-Sánchez, P.A.; Llena, D.. "On the generalized Feng-Rao numbers of numerical semigroups generated by intervals". Mathematics of Computation 82 283 (2013): 1813-1836. http://www.scopus.com/inward/record.url?eid=2-s2.0-84878213204&partnerID=MN8TOARS.
    10.1090/S0025-5718-2013-02673-7
  8. Delgado, M.; Fernandes, V.H.. "Rees quotients of numerical semigroups". Portugaliae Mathematica 70 2 (2013): 93-112. http://www.scopus.com/inward/record.url?eid=2-s2.0-84882569587&partnerID=MN8TOARS.
    10.4171/PM/1927
  9. Costa, A.; Delgado, M.; Fernandes, V.H.. "Preface". International Journal of Algebra and Computation 21 7 (2011): http://www.scopus.com/inward/record.url?eid=2-s2.0-82955194543&partnerID=MN8TOARS.
    10.1142/S0218196711006959
  10. Delgado, M.; Steinberg, B.. "On iterated Mal'cev products with a pseudovariety of groups". International Journal of Algebra and Computation 21 7 (2011): 1285-1304. http://www.scopus.com/inward/record.url?eid=2-s2.0-82955169584&partnerID=MN8TOARS.
    10.1142/S0218196711006947
  11. Cordeiro, E.; Delgado, M.. "On the relative solvability of certain inverse monoids". Semigroup Forum 81 3 (2010): 531-547. http://www.scopus.com/inward/record.url?eid=2-s2.0-78049485080&partnerID=MN8TOARS.
    10.1007/s00233-010-9253-y
  12. Delgado, M.; Rosales, J.C.. "Modular diophantine inequalities and rotations of numerical semigroups". Journal of the Australian Mathematical Society 84 3 (2008): 315-328. http://www.scopus.com/inward/record.url?eid=2-s2.0-52449108340&partnerID=MN8TOARS.
    10.1017/S1446788708000141
  13. Delgado, M.; García-Sánchez, P.A.; Rosales, J.C.; Urbano-Blanco, J.M.. "Systems of proportionally modular Diophantine inequalities". Semigroup Forum 76 3 (2008): 469-488. http://www.scopus.com/inward/record.url?eid=2-s2.0-42249115494&partnerID=MN8TOARS.
    10.1007/s00233-008-9049-5
  14. Cordeiro, E.; Delgado, M.; Fernandes, V.H.. "Relative abelian kernels of some classes of transformation monoids". Bulletin of the Australian Mathematical Society 73 3 (2006): 375-404. http://www.scopus.com/inward/record.url?eid=2-s2.0-33746042164&partnerID=MN8TOARS.
    10.1017/S0004972700035413
  15. Cordeiro, E.; Delgado, M.. "Computing relative abelian kernels of finite monoids". Journal of Algebra 303 2 (2006): 642-654. http://www.scopus.com/inward/record.url?eid=2-s2.0-33746809018&partnerID=MN8TOARS.
    10.1016/j.jalgebra.2005.05.027
  16. Delgado, M.; Fernandes, V.H.. "Solvable monoids with commuting idempotents". International Journal of Algebra and Computation 15 3 (2005): 547-570. http://www.scopus.com/inward/record.url?eid=2-s2.0-22044447880&partnerID=MN8TOARS.
    10.1142/S0218196705002414
  17. Almeida, J.; Delgado, M.. "Tameness of the pseudovariety of Abelian groups". International Journal of Algebra and Computation 15 2 (2005): 327-338. http://www.scopus.com/inward/record.url?eid=2-s2.0-18744371021&partnerID=MN8TOARS.
    10.1142/S0218196705002311
  18. Delgado, M.; Fernandes, V.H.. "Abelian kernels of monoids of order-preserving maps and of some of its extensions". Semigroup Forum 68 3 (2004): 335-356. http://www.scopus.com/inward/record.url?eid=2-s2.0-2942560945&partnerID=MN8TOARS.
    10.1007/s00233-003-0014-z
  19. Delgado, M.; Fernandes, V.H.; Margolis, S.; Steinberg, B.. "On semigroups whose idempotent-generated subsemigroup is aperiodic". International Journal of Algebra and Computation 14 5-6 (2004): 655-665. http://www.scopus.com/inward/record.url?eid=2-s2.0-12344285008&partnerID=MN8TOARS.
    10.1142/s021819670400202x
  20. Delgado, M.; Héam, P.-C.. "A Polynomial Time Algorithm to Compute the Abelian Kernel of a Finite Monoid". Semigroup Forum 67 1 (2003): 97-110. http://www.scopus.com/inward/record.url?eid=2-s2.0-1642341321&partnerID=MN8TOARS.
  21. Delgado, M.; Margolis, S.; Steinberg, B.. "Combinatorial group theory, inverse monoids, automata, and global semigroup theory". International Journal of Algebra and Computation 12 1-2 (2002): 179-211. http://www.scopus.com/inward/record.url?eid=2-s2.0-0036016729&partnerID=MN8TOARS.
    10.1142/s0218196702000924
  22. Delgado, M.. "On the hyperdecidability of pseudovarieties of groups". International Journal of Algebra and Computation 11 6 (2001): 753-771. http://www.scopus.com/inward/record.url?eid=2-s2.0-0035566236&partnerID=MN8TOARS.
    10.1142/S0218196701000802
  23. Delgado, M.. "Commutative images of rational languages and the Abelian kernel of a monoid". RAIRO - Theoretical Informatics and Applications 35 5 (2001): 419-435. http://www.scopus.com/inward/record.url?eid=2-s2.0-14244272473&partnerID=MN8TOARS.
    10.1051/ita:2001100
  24. Delgado, Manuel; Almeida, J. "Sur certains systèmes d'équations avec contraintes dans un groupe libre - addenda". Portugaliae Mathematica 58 (2001): 379-387. http://www.emis.de/journals/PM/58f4/1.html.
    Published
  25. Delgado, M.; Fernandes, V.H.. "Abelian Kernels of some monoids of injective partial transformations and an application". Semigroup Forum 61 3 (2000): 435-452. http://www.scopus.com/inward/record.url?eid=2-s2.0-0005988434&partnerID=MN8TOARS.
  26. Delgado, Manuel; Almeida, J. "Sur certains systèmes d'équations avec contraintes dans un groupe libre". Portugaliae Mathematica 56 (1999): 409-417. https://www.emis.de/journals/PM/56f4/3.html.
    Published
  27. Delgado, M.. "Abelian Pointlikes of a Monoid". Semigroup Forum 56 3 (1998): 339-361. http://www.scopus.com/inward/record.url?eid=2-s2.0-0001602645&partnerID=MN8TOARS.
    10.1007/PL00005951
Journal issue
  1. Costa, Alfredo; Delgado, Manuel; Fernandes, Vítor Hugo; Jesus, Manuel. "Proceedings of the International Conference on Semigroups and Related Topics". International Journal of Algebra and Computation 21 07 (2011): https://www.worldscientific.com/toc/ijac/21/07.
    Published
Newsletter article
  1. Delgado, M.; García-Sánchez, P.A.; Rosales, J.C.. "Numerical semigroups problem list", Bulletin of the International Center for Mathematics, 2013, http://www.cim.pt/magazines/bulletin/7.
  2. Delgado, Manuel; García-Sánchez, P.A.. "An interview with the scientific committee members of the Iberian Meeting on Numerical Semigroups -- Vila Real 2012", Centro Internacional de Matemática (CIM) Bulletin, 2013, http://www.cim.pt/magazines/bulletin/7.
  3. Reis, Ilda; Cordeiro, Edite; Delgado, Manuel. "Dinâmica do desdobramento de sólidos geométricos com recurso ao GeoGebra 2D", Boletim da Sociedade Portuguesa de Matemática, Atas do Encontro Nacional da SPM, 2012, 2012, https://revistas.rcaap.pt/boletimspm/article/view/3845/2898.
Preprint
  1. Delgado, M.; Usó I Cubertorer, J.. "Kunz languages for numerical semigroups are context sensitive". 2023. http://www.scopus.com/inward/record.url?eid=2-s2.0-85164837819&partnerID=MN8TOARS.
  2. Delgado, M.; Eliahou, S.; Fromentin, J.. "A verification of Wilf's conjecture up to genus 100". 2023. http://www.scopus.com/inward/record.url?eid=2-s2.0-85174887019&partnerID=MN8TOARS.
    10.48550/arXiv.2310.07742
  3. Delgado, M.. "Trimming The Numerical Semigroups Tree to Probe Wilf's Conjecture to Higher Genus". 2019. http://www.scopus.com/inward/record.url?eid=2-s2.0-85169200696&partnerID=MN8TOARS.
    10.48550/arxiv.1910.12377

Other

Other output
  1. ON COUNTING NUMERICAL SEMIGROUPS BY MAXIMUM PRIMITIVE AND WILF’S CONJECTURE. 2025. Delgado, M.; Kumar, N.; Marion, C.. http://www.scopus.com/inward/record.url?eid=2-s2.0-85215461173&partnerID=MN8TOARS.
    10.48550/arXiv.2501.04417
Software
  1. Delgado, Manuel; Garciá-Sánchez, P.A.; Morais, José. "NumericalSgps, a GAP package to compute with numerical semigroups (Version 1.4.0)". 1.4.0. Any. 2024.
  2. Piedade, Claudio Alexandre; Delgado, Manuel. "CoreFreeSub". 0.2. Universidade do Porto Faculdade de Ciências. GAP - Groups, Algorithms and Programming. 2023.
  3. Delgado, Manuel. "IntPic - a GAP package for drawing integers". 0.3.0. 2022.
  4. Delgado, Manuel. "Automata - a GAP package on finite state automata". 1.15. 2022.
  5. Delgado, Manuel. "SgpViz - a GAP package with visualization features for finite semigroups". 0.999.5. 2022.
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2024/07/08 Examples, counter-examples and the absence of examples.
University of Cádiz ( Jerez de la Frontera, Spain)
2023/07/19 Still counting numerical semigroups
Universidade de Évora (Évora, Portugal)
2022/10/07 On the usefulness of computer algebra systems Iberian Mathematical Meeting
Institute of Mathematics of the University of Seville (Seville, Spain)
2022/06/13 On the contribution of Herbert Wilf to the development of the theory of Numerical Semigroups International meeting on numerical semigroups
INDAM Istituto Nazionale di Alta Matematica "Francesco Severi" (Rome, Italy)
2021/07/15 Verificando la conjectura de Wilf hasta un género alto
Universidad de Cadiz (Jerez de la Frontera, Spain)
2019/08/19 Exploring N numerical semigroups in n miliseconds, using GAP GAP and Singular Meeting
PfalzAkademie (Lambrecht, Germany)
2019/06/13 Quelques expériences sur les semigroupes numériques Séminaire et groupe de travail d'Algèbre
Laboratoire de Mathématiques Pures et Appliquées Joseph Liouville, Calais, France (Calais, France)
2018/12/11 On the intriguing conjecture of Wilf II joint meeting Spain-Brazil in Mathematics - Special session "Commutative Semigroups"
Universidad de Cádiz (Cádiz, Spain)
2018/09/05 Problems on numerical semigroups posed by Wilf International Meeting on Numerical Semigroups
Istituto Nazionale di Alta Matematica (Cortona, Italy)
2017/06/14 Revisiting the problem of counting numerical semigroups by genus Meeting of the Catalan, Spanish, Swedish Math Societies -- Special session ``Numerical Semigroups and Applications''
Linköping University (Umea, Sweden)
2017/05/23 Some rare Numerical Semigroups Seminário de Álgebra
Centro de Matemática e Aplicações da Universidade Nova de Lisboa (Caparica, Portugal)
2014/09/08 Experiments with numerical semigroups International meeting on numerical semigroups
Instituto Nazionale di Alta Matematica (Cortona, Italy)
2014/08/25 intpic – a package for drawing integers, by emphasizing some subsets GAP Days 2014
RWTH Aachen University (Aachen, Germany)
2014/07/21 GAP and numerical semigroups Workshop on Computational Algebra 2014
Centro de Álgebra da Universidade de Lisboa (Lisboa, Portugal)
2014/05/31 GAP packages Jornadas de Sage/Python 2014
Universidad de Extremadura (Jarandilla de la Vera (Cáceres), Spain)
2009/07 Algorithmic aspects of finite semigroup and automata theory using the computer algebra system GAP Soria Summer School on Computational Mathematics
Universidad de Valladolid, campus de Soria (Soria, Spain)
2009 Computing kernels of finite monoids International Conference on Geometric & Combinatorial Methods in Group Theory & Semigroup Theory
University of Nebrasca - Lincoln, Dpt of Mathematics (Lincoln - Nebraska, USA, United States)
2006 On the use of GAP in Finite Semigroup Theory An international workshop on computational and algorithmic aspects of semigroup theory
University of St Andrews (St Andrews, Scotland, United Kingdom)
2006 On the GAP package SgpViz Second International Congress on Mathematical Software (A Satellite Workshop to the International Congress on Mathematics)
University of Cantabria (Castro Urdiales, Spain, Spain)
2005 Computing relative abelian kernels of finite monoids International Conference on Semigroups and Languages
CAUL (Lisboa, Portugal)
2005 The GAP package automata Workshop on Semigroups and Automata (Satellite Workshop to ICALP'05)
(Lisboa, Portugal)
2003 The pro-Odd topology of the free group: some closed subgroups International Meeting on Semigroup Theory and Related Topics
(Braga, Portugal)
2002 Núcleos Abelianos e Semigrupos Solúveis Dia aberto do CMUP 2002
CMUP (Porto, Portugal)
2002 On semigroups whose idempotent-generated subsemigroup is aperiodic Workshop Semigroups and Languages
CAUL (Lisboa, Portugal)
2002 Solvable monoids with commuting idempotents International Conference on Semigroups and Group in Honor of the 65th Birthday of John Rhodes
CMUP (Porto, Portugal)
2001 On certain systems of equations on the free group Workshop on Model Theory, Profinite Topology and Semigroups
(Coimbra, Portugal)
2000 Computing the abelian kernel of a finite monoid International Conference on Geometric & Combinatorial Methods in Group Theory & Semigroup Theory
(Lincoln - Nebraska, USA, United States)
1997 Type II theorem and hyperdecidability of pseudovarieties of groups Conference on Semigrups and Applications
(St Andrews, Scotland, United Kingdom)
1997 On certain classes of pseudovarieties of groups First Meeting of the Project "Algebra, Geometry and Combinatorics''
(Braga, Portugal)

Supervision

Thesis Title
Role 		Degree Subject (Type)
Institution / Organization
2022/04/06 - Current (Provisional title) Numerical semigroups: a conjecture of Wilf and related topics
Co-supervisor of Neeraj Kumar
 Matemática (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2022/09/16 - 2023/07/24 Kunz languages
Supervisor of Jaume Usó i Cubertorer
Matemática (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2016 - 2016 Topicos de Semigrupos Numéricos
Supervisor
 Matemática (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2003/05 - 2009/04 Núcleo e Solubilidade de Certos Monoides Invesos, relativamente a pseudovariedades de grupos abelianos
Supervisor of Edite Martins Cordeiro
 Matemática (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2006 - 2006 Ensinar Álgebra usando o GAP
Supervisor of Judite Lima
 Mestrado em Matemática para professores (Master)
Universidade do Porto Faculdade de Ciências, Portugal
2002/09 - 2003/07 Autómatos no GAP (Intership)
Supervisor of José João Morais
 Ciência de Computadores (Degree)
Universidade do Porto Faculdade de Ciências, Portugal

Event organisation

Event name
Type of event (Role) 		Institution / Organization
2018/07/09 - 2018/07/09 Special session on "semigroups" in the 2018 SPM meeting (2018/05/09 - 2018/07/09)
Conference (Member of the Organising Committee)
 Instituto Politécnico de Bragança Escola Superior de Tecnologia e Gestão, Portugal
2016/06/20 - 2016/06/24 International Conference on Semigroups and Automata 2016 (2016/06/20 - 2016/06/24)
Conference (Member of the Organising Committee)
 Universidade de Lisboa Faculdade de Ciências, Portugal
2015/06/10 - 2015/06/13 Special Session on "Commutative Monoids" in the AMS / EMS / SPM International Meeting, 2015 (2015/01/10 - 2015/06/13) Universidade do Porto Faculdade de Ciências, Portugal
2012/10/05 - 2012/10/07 Session on "Computational Algebra and Applications" of the 4th Iberian Mathematical Meeting (2012/05 - 2012/10)
Meeting (Member of the Scientific Committee)
 Universidad de Valladolid, Spain
2012/07/18 - 2012/07/20 Iberian meeting on numerical semigroups - Vila Real 2012 (2012/01 - 2012/12)
Meeting (Member of the Organising Committee)
 Universidade de Trás-os-Montes e Alto Douro, Portugal
2010/06 - 2010/06 Automata, Semigroups and Applications' days (2010/03 - 2010/07)
Workshop (Member of the Organising Committee)
 Universidade do Porto Faculdade de Ciências, Portugal
2010/02/03 - 2010/02/05 Iberian meeting on numerical semigroups - Granada 2010 (2009/09 - 2010/06)
Meeting (Member of the Organising Committee)
 Universidad de Granada - Campus de Fuentenueva, Spain
2009/07/06 - 2009/07/11 International Conference on Semigroups and related topics (2008/06 - 2010/05)
Conference (Member of the Organising Committee)
 Universidade do Porto Faculdade de Ciências, Portugal
2008/09/01 - 2008/09/12 School on Algebraic Theory of Automata (2008)
Other (Co-organisor)
 Universidade do Porto Centro de Matemática, Portugal

Centro de Álgebra da Universidade de Lisboa, Portugal

European Science Foundation, France
2008/03/17 - 2008/03/19 Iberian meeting on numerical semigroups - Porto 2008 (2007/09 - 2008/07)
Meeting (Member of the Organising Committee)
 Universidade do Porto Centro de Matemática, Portugal

Event participation

Activity description
Type of event 		Event name
Institution / Organization
2023/07/18 - 2023/07/20 Meeting attendance and oral presentation
Meeting
Universidade de Évora, Portugal

Jury of academic degree

Topic
Role 		Candidate name (Type of degree)
Institution / Organization
2024/03/27 Qualitative analysis of epidemiological models: chaos, bifurcations and stability
President of the jury
 João P. S. Maurício de Carvalho (PhD)
Faculdade de Ciências da Universidade do Porto, Portugal
2022/04/26 Faithful permutation representations of C-groups
Thesis Member
 Claudio Alexandre Guerra Silva Gomes da Piedade (PhD)
Universidade de Aveiro, Portugal
2022/04/20 Dense, positioned and almost-positioned numerical semigroups
(Thesis) Main arguer
 Manuel António Silva Ramos Caldas Faria (PhD)
Universidade Nova de Lisboa Faculdade de Ciências e Tecnologia, Portugal
2022/02/18 Partial Isometries of Some Simple Connected Graphs
(Thesis) Main arguer
 Tânia Patrícia Lopes Paulista (Master)
Universidade Nova de Lisboa, Portugal
2021/11/26 Quantum Generalized Heisenberg Algebras
President of the jury
 Farrokh Razavinia (PhD)
Universidade do Porto Faculdade de Ciências, Portugal
2021/06/09 Non-standard ranks of matrices
Thesis Member
 António Pedro Neves Goucha (PhD)
Universidade de Coimbra Departamento de Matemática, Portugal
2020/02/02 Logic foundations and computational tools for synthetic biology
Thesis Member
 Daniel Oliveira Figueiredo (PhD)
Universidade de Aveiro, Portugal
2017/12/07 Problems in Numerical Semigroups
(Thesis) Arguer
 Mariam Dhayni (PhD)
Université Angers Departement de Mathématiques, France
2015/07/03 Linear Diophantine equations and applications
(Thesis) Arguer
 Alfredo Sánchez-R. Navarro (PhD)
Universidad de Granada - Campus de Fuentenueva, Spain

Committee member

Activity description
Role 		Institution / Organization
2023/09/11 - Current Director of the Bachelor in Mathematics
Director
 Universidade do Porto Faculdade de Ciências, Portugal
2015 - Current Member of various selection committees for research positions at CMUP.
Member
 Universidade do Porto Centro de Matemática, Portugal
2020/01 - 2022/01 Coordinator of the Steering Committee of the joint UC|UP Phd Program in Mathematics
Coordinator
 Universidade do Porto Faculdade de Ciências, Portugal
2013/02 - 2017/01 Director of R&D unit (CMUP)
Director
 Centro de Matemática da Universidade do Porto, Portugal

Conference scientific committee

Conference name Conference host
2024/07/08 - 2024/07/12 International Meeting on Numerical Semigroups 2024 Universidad de Cádiz
2022/06/13 - 2022/06/17 International Meeting on Numerical Semigroups INdAM workshop, Roma

Mentoring / Tutoring

Topic Student name
2022/11/15 - Current Postdoc Claudio Piedade
2012/05/15 - 2012/09/14 Postdoc David Llena Carrasco