Book |
- Palmeirim, Simão; Freitas, Pedro J.. Almada Negreiros e o Mosteiro da Batalha. Portugal: Documenta / Mosteiro da Batalha.
2021.
Published
- Freitas, Pedro; Silva, Jorge Nuno; Hirth, Tiago Wolfram Nunes dos Santos; Silva, Alexandre. Matemagia. 2016.
- Freitas, Pedro; Palmeirim, Simão. Livro de Problemas de Almada Negreiros. Portugal: Sociedade Portuguesa de Matemática.
2015.
Published
|
Book chapter |
- Jorge Nuno Silva; Pedro Jorge Freitas. "The Recreational Problems of Tratado de Prática Darysmetica by Gaspar Nicolas, 1519".
47-56. Springer International Publishing, 2023.
10.1007/978-3-031-21494-3_3
- Palmeirim, Simão; Mariana Pinto dos Santos; Freitas, Pedro J.. "Ver". In José de Almada Negreiros - Uma maneira de ser
moderno, edited by Fundação Calouste Gulbenkian; Documenta, 101-125. Lisboa, Portugal: Fundação Calouste Gulbenkian /
Sistema Solar, 2017.
Published
|
Conference paper |
- Freitas, Pedro; Silva, Jorge Nuno; Hirth, Tiago Wolfram Nunes dos Santos. "Mathematical Magic With a Deck of Cards". Paper
presented in Bridges 2018: Mathematics, Art, Music, Architecture, Education, Culture, 2018.
Published
- Freitas, Pedro; Palmeirim, Simão. "The Pentagram and the Golden Angle in Almada Negreiros’ Mural “Começar”". Paper presented
in Bridges 2018: Mathematics, Art, Music, Architecture, Education, Culture, Estocolmo, 2018.
Published
- Freitas, Pedro; Palmeirim, Simão. "The Golden Angle and How to Construct It". Paper presented in 5th Recreational Mathematics
Colloquium, Lisboa, 2017.
Published
- Freitas, Pedro; Palmeirim, Simão. "Almada Negreiros and the Geometric Canon". Paper presented in Congresso Internacional
Almada Negreiros: un trait d’union tra arti e culture, Pisa, 2015.
Published
- Freitas, Pedro; Palmeirim, Simão. "Os Problemas de Matemática de Almada Negreiros". Paper presented in Encontro Nacional
da Sociedade Portuguesa de Matemática, Almada, 2014.
Published
|
Edited book |
- Pedro J Freitas; Jorge Nuno Silva. Tratado da prática de aritmética. Portugal. 2022.
|
Journal article |
- Carlos A. M. André; Pedro J. Freitas; Tânia Z. Silva. "A Schur ring approach to supercharacters of groups associated with
finite radical rings". Communications in Algebra (2024): http://dx.doi.org/10.1080/00927872.2024.2304590.
10.1080/00927872.2024.2304590
- Pedro Freitas; Tania Martuscelli. "A Matemática em Mário-Henrique Leiria". e-Letras com Vida - Revista de Estudos Globais:
Humanidades, Ciências e Artes (2023): https://doi.org/10.53943/ELCV.0223_37-56.
10.53943/ELCV.0223_37-56
- Jorge Nuno Silva; Pedro Jorge Freitas. "The Loterias Lisbonenses of Francisco Giraldes Barba". British Journal for the
History of Mathematics (2023): https://doi.org/10.1080/26375451.2023.2258331.
10.1080/26375451.2023.2258331
- Pedro Freitas. "The mathematics of Almada Negreiros". Journal of Mathematics and the Arts (2023): https://doi.org/10.1080/17513472.2023.2236005.
10.1080/17513472.2023.2236005
- Freitas, Pedro; Palmeirim, Simão. "A geometria que Almada leu". Revista de História da Sociedade e da Cultura 20 (2020):
283-297. http://dx.doi.org/10.14195/1645-2259_20_13.
10.14195/1645-2259_20_13
- Pedro J. FREITAS. "Textes et documents : Les lettres de Charles Hermite à Francisco Gomes Teixeira". Revue d histoire des
mathé matiques 26 1 (2020): 73-95. http://dx.doi.org/10.24033/rhm.228.
10.24033/rhm.228
- Freitas, Pedro; Palmeirim, Simão. "Mathematics + Art: A Cultural History by Lynn Gamwell". The Mathematical Intelligencer
(2019): https://doi.org/10.1007/s00283-019-09911-w.
10.1007/s00283-019-09911-w
- Freitas, Pedro. "The Correspondence from Ernesto Cesàro to Francisco Gomes Teixeira". Bollettino di storia delle scienze
matematiche (2019): http://doi.org/10.19272/201909202002.
10.19272/201909202002
- Freitas, Pedro; Rodrigues, Fátima. "Identidade e azulejos pela classificação de padrões". ARTis ON 8 (2018): http://artison.letras.ulisboa.pt/index.php/ao/article/view/218.
Open access • Published
- Palmeirim, Simão; Freitas, Pedro J.. "Mathematics in the work of Almada Negreiros". European Modernism 4. Almada Negreiros:
Un trait d'union tra arti e culture (2018):
Published
- Freitas, Pedro; Tavares, Hugo. "Dividing the Circle". The College Mathematics Journal 49 3 (2018): 187-194. https://doi.org/10.1080/07468342.2018.1440871.
10.1080/07468342.2018.1440871
- Freitas, Pedro; Palmeirim, Simão. "A matemática na obra de Almada Negreiros". Educação e matemática 138 (2016): 3-8.
http://www.apm.pt/portal/em.php?id=19480&rid=224267.
Published
- Freitas, Pedro. "Geometria, entre Suporte e Tema da Obra de Arte, em Almada Negreiros". Convocarte - Revista de ciências
da arte 3 (2016): 136-145. http://convocarte.belasartes.ulisboa.pt/wp-content/uploads/2017/04/Convocarte-3.pdf.
Open access
- Freitas, Pedro. "Almada Negreiros and the regular nonagon". Recreational Mathematics Magazine 3 (2015): http://rmm.ludus-opuscula.org/Home/ArticleDetails/1125.
Published
- Carvalho, S.; Freitas, Pedro. "On derivatives and norms of generalized matrix functions and respective symmetric powers".
Electronic Journal of Linear Algebra 30 (2015): 322-335. http://www.scopus.com/inward/record.url?eid=2-s2.0-84937420700&partnerID=MN8TOARS.
- Palmeirim, Simão; Freitas, Pedro. "Almada Negreiros and the geometric canon". Journal of Mathematics and the Arts 9
1-2 (2015): 27-36. http://www.scopus.com/inward/record.url?eid=2-s2.0-84929046623&partnerID=MN8TOARS.
10.1080/17513472.2015.1012699
- André, C.A.M.; Freitas, Pedro; Neto, A.M.. "A supercharacter theory for involutive algebra groups". Journal of Algebra
430 (2015): 159-190. http://www.scopus.com/inward/record.url?eid=2-s2.0-84924218948&partnerID=MN8TOARS.
10.1016/j.jalgebra.2015.02.015
- Carvalho, Sonia; Freitas, Pedro. "THE NORM OF THE K-TH DERIVATIVE OF THE chi-SYMMETRIC POWER OF AN OPERATOR". Electronic
Journal of Linear Algebra 27 (2014): 302-316. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000334574100002&KeyUID=WOS:000334574100002.
- Carvalho, Sonia; Freitas, Pedro. "THE K-TH DERIVATIVES OF THE IMMANANT AND THE chi-SYMMETRIC POWER OF AN OPERATOR". Electronic
Journal of Linear Algebra 27 (2014): 284-301. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000334574100001&KeyUID=WOS:000334574100001.
- Freitas, Pedro. "A matemática nas obras Número e Começar". Revista de História da Arte, série W 2 (2014): http://revistaharte.fcsh.unl.pt/rhaw2/RHAw2.pdf.
Open access • Published
- Palmeirim, Simão; Freitas, Pedro J.. "The language of the square". Cine Qua Non 8 (2014): 160-173. https://cinequanon.pt/2016/05/04/cine-qua-non-8/.
Published
- Dias da Silva, J. A.; Freitas, Pedro. "Counting spectral radii of matrices with positive entries". European Journal of
Combinatorics 34 8 (2013): 1316-1325. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000323466900011&KeyUID=WOS:000323466900011.
10.1016/j.ejc.2013.05.014
- Freitas, Pedro. "A TOPOLOGICAL APPROACH TO UNIFYING COMPACTIFICATIONS OF SYMMETRIC SPACES". Asian Journal of Mathematics
17 4 (2013): 597-607. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000332432800002&KeyUID=WOS:000332432800002.
- Freitas, Pedro; Shell-Gellasch, Amy. "When a Number System Loses Uniqueness: The Case of the Maya". Convergence - Loci
(2012): http://dx.doi.org/10.4169/loci003883.
Published • 10.4169/loci003883
- Freitas, Pedro; Friedland, Shmuel; Porta, Gaspar. "UPPER BOUNDS ON THE MAGNITUDE OF SOLUTIONS OF CERTAIN LINEAR SYSTEMS WITH
INTEGER COEFFICIENTS". Electronic Journal of Linear Algebra 24 (2012): 113-125. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000315999400010&KeyUID=WOS:000315999400010.
- Friedland, S; Freitas, Pedro. "Revisiting the Siegel upper half plane I". Linear Algebra and Its Applications 376 (2004):
19-44. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000186560300002&KeyUID=WOS:000186560300002.
10.1016/S0024-3795(03)00662-1
- Friedland, S; Freitas, Pedro. "p-Metrics on GL(n, C/U-n and their Busemann compactifications". Linear Algebra and Its Applications
376 (2004): 1-18. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000186560300001&KeyUID=WOS:000186560300001.
10.1016/S0024-3795(03)00661-X
- Freitas, Pedro; Friedland, S. "Revisiting the Siegel upper half plane II". Linear Algebra and Its Applications 376
(2004): 45-67. http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=ORCID&SrcApp=OrcidOrg&DestLinkType=FullRecord&DestApp=WOS_CPL&KeyUT=WOS:000186560300003&KeyUID=WOS:000186560300003.
10.1016/j.laa.2003.06.001
|
Magazine article |
- Freitas, Pedro J.; Jorge-Nuno Silva. "Mathematical Treasure: Gaspar Nicolas’s Tratado da Prática D'arismetyca", Convergence,
2021, https://www.maa.org/press/periodicals/convergence/mathematical-treasure-gaspar-nicolas-s-tratado-da-pr-tica-darismetyca.
- Freitas, Pedro. "Tratado de Prática Darismética de Gaspar Nicolás", Gazeta de matemática, 2020
|
Manual |
- Freitas, Pedro. Polinómios. Lisboa, Portugal: Departamento de Matemática da Universidade de Lisboa. 2010.
Published
- Freitas, Pedro. Tópicos de álgebra superior. Lisboa, Portugal: Departamento de Matemática da Universidade de Lisboa.
2005.
Published
|
Website |
- Palmeirim, Simão; Freitas, Pedro J.. Começar. 2018. https://gulbenkian.pt/almada-comecar/.
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