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Identification

Personal identification

Full name
CLAUDIO ALEXANDRE GUERRA SILVA GOMES DA PIEDADE

Citation names

  • Piedade, Claudio Alexandre

Author identifiers

Ciência ID
6515-6BCE-9F76
ORCID iD
0000-0002-0746-5893
AuthenticusID
R-00K-EPZ
Google Scholar ID
2A5iwSwAAAAJ&hl

Websites

Knowledge fields

  • Exact Sciences - Mathematics - Pure Mathematics

Languages

Language Speaking Reading Writing Listening Peer-review
Portuguese (Mother tongue)
English Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1) Advanced (C1)
Italian Elementary (A2) Intermediate (B1) Elementary (A2) Elementary (A2) Beginner (A1)
Japanese Elementary (A2) Elementary (A2) Elementary (A2) Elementary (A2) Beginner (A1)
Education
Degree Classification
2017/09 - 2022/04/26
Concluded
Applied Mathematics (Doutoramento)
Universidade de Aveiro, Portugal
"Faithful permutation representations of C-groups" (THESIS/DISSERTATION)
Approved with merit and distinction
2013/09 - 2016/11
Concluded
Biochemistry (Mestrado)
Major in Biochemistry
Universidade de Lisboa Faculdade de Ciências, Portugal
""How to disassemble a Virus Capsid: a computational approach"" (THESIS/DISSERTATION)
19/20
2010/09 - 2013/07/02
Concluded
Biochemistry (Licenciatura)
Universidade de Lisboa Faculdade de Ciências, Portugal
18/20
Affiliation

Science

Category
Host institution
Employer
2025/12/01 - Current Postdoc (Research) Université Libre de Bruxelles Département de Mathématique, Belgium
2022/11/15 - 2025/11/14 Postdoc (Research) Universidade do Porto Centro de Matemática, Portugal
Universidade do Porto Centro de Matemática, Portugal
2017/02 - 2017/05 Researcher (Research) Universidade Nova de Lisboa Instituto de Tecnologia Química e Biológica, Portugal
Universidade Nova de Lisboa Instituto de Tecnologia Química e Biológica, Portugal
2015/09 - 2016/11 Researcher (Research) Universidade de Lisboa Centro de Química e Bioquímica, Portugal
Universidade de Lisboa Faculdade de Ciências, Portugal
Projects

Grant

Designation Funders
2018/06/01 - 2022/04/26 Faithful permutation representations of C-groups
PD/BD/142888/2018
PhD Student Fellow
Universidade de Aveiro, Portugal

Universidade do Porto Faculdade de Ciências, Portugal
Fundação para a Ciência e a Tecnologia
Concluded
2017/02 - 2017/05 Biocatalysis for tackling lignin recalcitrance
PTDC/BBBEBB/0122/2014
Researcher
Universidade Nova de Lisboa Instituto de Tecnologia Química e Biológica, Portugal
Fundação para a Ciência e a Tecnologia
2012/09 - 2013/09 Os pirilampos do mar- estudo dos processos bioquímicos e moleculares associados à emissão de luz em eucariotas unicelulares
Researcher
Universidade de Lisboa Centro de Oceanografia, Portugal

Universidade de Lisboa Instituto de Biossistemas e Ciências Integrativas, Portugal
Universidade de Lisboa

Fundação Amadeu Dias
Concluded

Contract

Designation Funders
2025/12/01 - Current Quantum symmetries, machine learning and combinatorics
-
Post-doc
Université Libre de Bruxelles Département de Mathématique, Belgium
Fédération Wallonie-Bruxelles
Ongoing
2025/01/01 - 2025/11/14 Centre of Mathematics of the University of Porto
UID/00144/2025
Post-doc
Universidade do Porto Centro de Matemática, Portugal

Universidade do Porto Faculdade de Ciências, Portugal
Fundação para a Ciência e a Tecnologia
Ongoing
2022/11/15 - 2024/12/31 Centre of Mathematics of the University of Porto
Post-doc Fellow
Universidade do Porto Centro de Matemática, Portugal
Fundação para a Ciência e a Tecnologia

Other

Designation Funders
2018/06/01 - 2022/04/26 Center for Research and Development in Mathematics and Applications
PhD Student Fellow
Universidade de Aveiro Centro de Investigação e Desenvolvimento em Matemática e Aplicações, Portugal
Fundação para a Ciência e a Tecnologia
2015/09 - 2016/11 The architecture of life: Probing the quaternary structure of virus capsids by native mass spectrometry
Master Student Fellow
Universidade de Lisboa Centro de Química e Bioquímica, Portugal
Fundação para a Ciência e a Tecnologia
Outputs

Publications

Book chapter
  1. Claudio Alexandre Piedade; Marta Sousa Silva; Carlos Cordeiro; António E. N. Ferreira. "Virus Disassembly Pathways Predicted from Geometry and Configuration Energy". 289-301. Springer International Publishing, 2018.
    10.1007/978-3-319-94806-5_16
Conference paper
  1. Claudio Alexandre Piedade; António E. N. Ferreira; Carlos Cordeiro. "How to Disassemble a Virus Capsid - A Computational Approach". 2017.
    10.5220/0006249802170222
Conference poster
  1. Piedade, Claudio Alexandre; Matos, Ana Rita; Ana Amorim-Ferreira. "Estudo de Processos Bioquímicos e Moleculares Associados à Emissão de Luz em Eucariotas Unicelulares". Paper presented in Simpósio Ciências do Mar, 2013.
Journal article
  1. Fernandes, Maria Elisa; Piedade, Claudio Alexandre. "Regular polytopes of rank n/2 for transitive groups of degree n". Journal of Algebra 689 (2026): 256-296. https://doi.org/10.1016/j.jalgebra.2025.10.017.
    Published • 10.1016/j.jalgebra.2025.10.017
  2. Fernandes, Maria Elisa; Piedade, Claudio Alexandre. "The degrees of the orientation-preserving automorphism groups of toroidal maps and hypermaps". Journal of Algebraic Combinatorics 61 4 (2025): https://doi.org/10.1007/s10801-025-01418-2.
    Published • 10.1007/s10801-025-01418-2
  3. Piedade, Claudio Alexandre; Tranchida, Philippe. "Constructing New Geometries: A Generalized Approach to Halving for Hypertopes". Combinatorica 45 1 (2025): https://doi.org/10.1007/s00493-024-00134-y.
    Published • 10.1007/s00493-024-00134-y
  4. Fernandes, Maria Elisa; Piedade, Claudio Alexandre; Reade, Olivia. "String C-group representations of transitive groups: a case study with degree 11". The Art of Discrete and Applied Mathematics 7 2 (2024): #P2.07. https://doi.org/10.26493/2590-9770.1627.77a.
    10.26493/2590-9770.1627.77a
  5. Piedade, Claudio Alexandre. Corresponding author: Piedade, Claudio Alexandre. "Infinite Families of Hypertopes from Centrally Symmetric Polytopes". The Electronic Journal of Combinatorics 30 2 (2023): https://doi.org/10.37236/10392.
    Open access • 10.37236/10392
  6. Maria Elisa Fernandes; Piedade, Claudio Alexandre. "The Degrees of Regular Polytopes of Type [4, 4, 4]". SIAM Journal on Discrete Mathematics 36 2 (2022): 1143-1155. http://dx.doi.org/10.1137/20m1375012.
    Published • 10.1137/20m1375012
  7. Fernandes, M.E.; Piedade, C.A.; Fernandes, Maria Elisa; Piedade, Claudio Alexandre. "The degrees of toroidal regular proper hypermaps". Art of Discrete and Applied Mathematics 4 3 (2021): http://www.scopus.com/inward/record.url?eid=2-s2.0-85116715802&partnerID=MN8TOARS.
    10.26493/2590-9770.1350.c36
  8. Leemans, Dimitri; Weiss, Asia Ivic; Piedade, Claudio; Maria Elisa Fernandes. "Two families of locally toroidal regular 4-hypertopes arising from toroids". Polytopes and Discrete Geometry 764 (2021): 89-100. http://hdl.handle.net/10773/31118.
    Published • 10.1090/conm/764/15331
  9. Maria Elisa Fernandes; Piedade, Claudio Alexandre. "Correction to "Faithful permutation representations of toroidal regular maps"". Journal of Algebraic Combinatorics 54 3 (2020): 733-738. http://dx.doi.org/10.1007/s10801-020-00985-w.
    Open access • Published • 10.1007/s10801-020-00985-w
  10. Maria Elisa Fernandes; Piedade, Claudio Alexandre. "Faithful permutation representations of toroidal regular maps". Journal of Algebraic Combinatorics 52 3 (2019): 317-337. http://dx.doi.org/10.1007/s10801-019-00904-8.
    Open access • Published • 10.1007/s10801-019-00904-8
Online resource
  1. Piedade, Claudio Alexandre; Leemans, Dimitri. Atlas of Hypertopes. 2024. https://capiedade.github.io/Atlas/Atlas-of-Hypertopes.html.
Preprint
  1. Piedade, C.A.; Tranchida, P.. "From Group Operations to Geometric Structures: Amalgamations, HNN-Extensions, and Twisting in Coset Geometries". 2025. http://www.scopus.com/inward/record.url?eid=2-s2.0-105008530244&partnerID=MN8TOARS.
    10.48550/arXiv.2505.24662
Thesis / Dissertation
  1. Piedade, Claudio Alexandre Guerra Silva Gomes da. "Faithful permutation representations of C-groups". PhD, 2022. http://hdl.handle.net/10773/33912.
  2. Piedade, Claudio Alexandre. "How to disassemble a virus capsid: a computacional approach". Master, 2016. http://hdl.handle.net/10451/25850.

Other

Software
  1. Piedade, Claudio Alexandre; Bernardo Leite da Cunha. "CompLieAlg". 0.1. Universidade do Porto Faculdade de Ciências. GAP - Groups, Algorithms and Programming. 2023.
  2. Piedade, Claudio Alexandre; Delgado, Manuel. "CoreFreeSub". 0.6. Universidade do Porto Faculdade de Ciências. GAP - Groups, Algorithms and Programming. 2023.
Activities

Oral presentation

Presentation title Event name
Host (Event location)
2025/11 Coset geometries – from groups to geometry Seminário do Centro de Investigação em Matemática e Aplicações (CIMA)
Universidade de Aveiro (Évora, Portugal)
2025/10 Coset geometries – from polytopes to geometric products Seminário de Álgebra, Combinatória e Teoria dos Números (CMUP)
Centro de Matemática da Universidade do Porto, Faculdade de Ciências da Universidade do Porto (Porto, Portugal)
2025/09 Merging Coset Geometries: from group operations to fusing geometries Buildings 2025
UCLouvain (Louvain-la-Neuve, Belgium)
2025/07 Merging Coset Geometries: from group operations to fusing geometries Summer JIM Days 2025
Universidade de Coimbra (Coimbra, Portugal)
2025/07 Merging Coset Geometries: Split extension and Twisting Conference on Theoretical and Computational Algebra 2025
Universidade de Évora (Évora, Portugal)
2025/06 Merging Coset Geometries: Amalgamation, HNN-extension and Twisting Graph Embeddings and Maps on Surfaces 2025
Slovak Academy of Sciences; Comenius University; Slovak University of Technology (Trencianske Teplice, Slovakia)
2024/07 Halving Hypertopes: A geometric approach Conference on Theoretical and Computational Algebra 2024
Universidade de Aveiro (Aveiro, Portugal)
2024/03 CoreFreeSub – a package to compute faithful transitive permutation representations of groups GAP Days Spring 2024
RPTU Kaiserslautern-Landau (Kaiserslautern, Germany)
2024/02 On the halving of leaf hypertopes Symmetry of Discrete Objects 2024
University of Auckland (Auckland, New Zealand)
2024/02 Faithful transitive permutation representations of abstract regular polytopes Mathematics Postgraduate Student Seminar (University of Auckland)
University of Auckland (Auckland, New Zealand)
2024/02 Faithful transitive permutation representations of C-groups Stochastic Topology and its Applications Seminar
Max Planck Institute for Mathematics in the Sciences (Leipzig, Germany)
2023/07/07 Core-free Degrees of Toroidal Maps Queer and Trans Mathematicians in Combinatorics 2023
Queen Mary University of London (London, United Kingdom)
2023/07 Core-free Degrees of Toroidal Maps The 13th Combinatorics Days
Departamento de Matemática, Universidade da Beira Interior (Covilhã, Portugal)
2023/06 Core-free degrees of Toroidal Chiral (Hyper)Maps 10th Slovenian Conference on Graph Theory
University of Ljubljana, Faculty of Mathematics and Physics (Kranjska Gora, Slovenia)
2021 Faithful transitive permutation representations of highly symmetric structures 1st Annual Meeting of DMat-UA PhD Students
Universidade de Aveiro (Aveiro, Portugal)
2020 CPR Graphs of Highly Symmetric Hypertopes Research Summit 2020
Universidade de Aveiro (Aveiro, Portugal)
2019 Locally toroidal hypertopes 9th PhD Summer School in Discrete Mathematics, Rogla
University of Primorska; Slovenian Discrete and Applied Mathematics Society (Rogla, Slovenia)
2019 Possible degrees of Toroidal Regular Maps 9th Slovenian International Conference on Graph Theory
IMFM - Institute of Mathematics, Physics and Mechanics (Bled, Slovenia)
2019 Possible degrees of toroidal regular maps of type {4,4} and {3,6} Séminaires de Algèbre et Combinatoire
Université Libre de Bruxelles (Bruxelas, Belgium)
2018 Mathematical tools for solving the problem of Viral Capsid Disassembly Workshop on Graph Theory, Combinatorics and Optimization
Universidade de Aveiro (Aveiro, Portugal)
2017 How to disassemble a virus capsid - a computational approach Chemistry and Biochemistry Postgraduate Students Meeting
Faculdade de Ciências da Universidade de Lisboa (Lisboa, Portugal)

Event organisation

Event name
Type of event (Role)
Institution / Organization
2025/12/01 - 2026/07/17 Local organiser of the conference "Symmetries in Graphs, Maps and Polytopes (SIGMAP) 2026" (2025/12/31 - 2026/07/17)
Conference (Member of the Organising Committee)
Université Libre de Bruxelles Département de Mathématique, Belgium
2024/02 - 2024/06/29 Member of the organisation committee of "The 14th Combinatoric Days", representing the Faculdade de Ciências da Universidade do Porto (2024/06/27 - 2024/06/29)
Conference (Member of the Organising Committee)
Universidade Nova de Lisboa NOVAMath, Portugal

Event participation

Activity description
Type of event
Event name
Institution / Organization
2024/06/27 - 2024/06/29 Participation on the conference "The 14th Combinatorics Days" where I was a member of the Organisation committee.
Conference
The 14th Combinatorics Days
Universidade Nova de Lisboa NOVAMath, Portugal
2024/05/20 - 2024/05/20 Participation in the information session dedicated to Call Marie Sklodowska-Curie Actions (MSCA) Postdoctoral Fellowships Call, organised by Fundação para a Ciência e a Tecnologia
Other
MSCA Postdoctoral Fellwoships 2024 – Info session
Fundação para a Ciência e a Tecnologia, Portugal
2023/08/10 - 2023/08/11 Attended conference
Conference
Early Career Symposium for the Topology, Actions, and Symmetry
University of Southampton, United Kingdom
2023/05/04 - 2023/05/04 INFO DAY HORIZON EUROPE - From research to innovation: ERC / EIC and Widera funding. Opportunities to develop better ideas in research and innovation: the European Research and Innovation Councils (ERC and EIC) and HOP ON
Other
Da investigação à inovação: Financiamento ERC / EIC e Widera
Agência Nacional de Inovação SA, Portugal

Fundação para a Ciência e a Tecnologia, Portugal
2023/02/09 - 2023/02/11 Faculty open days for high school students, where I gave a lecture regarding the research and employment perspectives in Mathematics
Other
Dias Abertos FCUP 2023
Universidade do Porto Faculdade de Ciências, Portugal
2018/10/21 - 2018/10/27 Research Visit to Universidade de Aveiro by Dimitri Leemans and Asia Weiss, to work on Locally Toroidal Hypertopes
Meeting
Research Visit to Universidade de Aveiro by Dimitri Leemans and Asia Weiss
Universidade de Aveiro, Portugal

Course / Discipline taught

Academic session Degree Subject (Type) Institution / Organization
2025/02 - 2025/07 Real Analysis II (Teaching of exercise-solving classes (TPs); Hold office hours and answering student queries; Propose and Grade tests’ and exams’ exercises) Matemática (Licenciatura) Universidade do Porto Faculdade de Ciências, Portugal

Interview (tv / radio show)

Program Topic
2022 - 2022 UAU - Perguntas sem limites Math - Ciência Fundamental

Journal scientific committee

Journal title (ISSN) Publisher
2023 - Current Electronic Journal of Combinatorics
2022 - Current AMS Mathematical Reviews
2024/02/14 - 2024/08/19 Innovations in Incidence Geometries (2640-7345)
2021/10/05 - 2021/10/13 Computational and Structural Biotechnology Journal (20010370) Elsevier

Scientific expedition

Activity description Institution / Organization
2024/02/26 - 2024/03/01 Invitation by Philippe Tranchida to the Max Planck Institute for Mathematics in the Sciences, for a week, to work on hypertopes and give a seminar Max-Planck-Institut für Mathematik in den Naturwissenschaften, Germany
2019/01 - 2019/01 Invitation by Dimitri Leemans to the Université Libre de Bruxelles, for a week, to develop computational tools for GAP (to study polytope families) and to give a lecture. Université Libre de Bruxelles Département de Mathématique, Belgium
Distinctions

Award

2019 Financial support (accommodation) from the organizers of the "9th PhD Summer School in Discrete Mathematics" to participate and give an oral communication
Univerza na Primorskem Fakulteta za matematiko naravoslovje in informacijske tehnologije, Slovenia
2018 PhD scholarship from Fundação para a Ciência e Tecnologia, Portugal, part of the Doctoral Program in Applied Mathematics Minho-Aveiro-Porto (MAP-PDMA)
Fundação para a Ciência e a Tecnologia, Portugal
2017 Research grant (as a MSc) from Fundação para a Ciência e Tecnologia, Portugal, to work on the project PTDC/BBBEBB/0122/2014
Universidade Nova de Lisboa Instituto de Tecnologia Química e Biológica, Portugal

Fundação para a Ciência e a Tecnologia, Portugal
2013 Merit scholarship for undergraduate studies at Universidade de Lisboa for the university year 2010/2011
Universidade de Lisboa, Portugal
2012 Award of best first-year average at Faculdade de Ciências da Universidade de Lisboa for the university year 2010/2011
Universidade de Lisboa Faculdade de Ciências, Portugal
2012 Research Incentive scholarship for the scientific project "Os Pirilampos do Mar - Estudo de processos bioquímicos e moleculares associados à emissão de luz"
Fundação Amadeu Dias, Portugal

Universidade de Lisboa, Portugal

Other distinction

2022 PhD thesis approved with distinction and merit
Universidade de Aveiro, Portugal
2020 Honourable mention for best oral communication presented at the "Research Summit 2020"
Universidade de Aveiro, Portugal