Forthcoming Conferences

    • Workshop on Spectral Graph Theory 2023 - Nair Abreu (70+3)rd birthday, Universidade Federal Fluminense in Niterói, Rio de Janeiro, Brazil, from October 24 to 27, 2023.
    • Optimization 2023, University of Aveiro, Portugal, July 24-26, 2023.
    • Combinatorics Days, Covilhã, Portugal, July 13-14, 2023.
    • 25th Conference of the International Linear Algebra Society, Madrid (Spain), June 12-16, 2023.

    Some Past Conferences

    • Encontro Conjunto Brasil-Portugal em Matemática, 14-20 de agosto, 2022, Universidade Federal da Bahia, em Salvador - Bahia.
    • XXX Congreso de Matemática Capricórnio - COMCA 2022, 3-5 de Agosto 2022, Iquique, Chile.
    • 23rd Conference of the International Linear Algebra Society - ILAS 2022, Galway, Ireland, June 20-24, 2022.
    • 9th International Conference Conference on Matrix Analysis and Applications (ICMAA 2022), June 25-17, 2022, University of Aveiro, Portugal.
    • Celebração do Dia Internacional da Matemática (14-03-2021), com eventos realizados entre 12 e 17 de março de 2021. Departamento de Matemática da Universidade de Aveiro e Centro de Investigação e Desenvolvimento em Matemática e Aplicações - CIDMA.
    • Dynamic Control and Optimization, International Conference on occasion of 65th birthday of Andrey V. Sarychev. February 3 to 5, 2021. The conference is organized by the Department of Mathematics of the University of Aveiro, the Center for Research & Development in Mathematics and Applications (CIDMA, University of Aveiro) and the Center for Applied Mathematics and Economics (CEMAPRE, University of Lisbon).
    • Workshop on Spectral Graph Theory 2020. In honor of Nair Abreu for her 70TH birthday, Niterói, Rio de Janeiro, Brazil, September 23-25, 2020.
    • Optimization 2020, Aveiro, Portugal, July 27-29, 2020.
    • 9th International Conference on Matrix Analysis and Applications (ICMAA 2020), University of Aveiro, Aveiro, Portugal, June 18-20, 2020.
    • Annual meeting of the Center for Research & Development in Mathematics and Applications (CIDMA), Department of Mathematics, University of Aveiro, Aveiro, Portugal, January 22 - 23, 2020.
    • Combinatória no Outono - nos 65 anos de António Guedes de Oliveira, Departamento de Matemática da Universidade de Aveiro - 25 de setembro de 2019.
    • XXVIII Congreso de Matemáticas Capricornio - COMCA 2019, La Serena, Chile, July 31 - August 02, 2019.
    • XX Congresso da APDIO - IO2019, July 22-24, 2019, Tomar, Portugal.
    • 3rd International Conference and Summer School 'Numerical Computations: Theory and Algorithms'. Dedicated to the 80th birthday of Professor Roman G. Strongin. June 15-21, 2019, Le Castella - Isola Capo Rizzuto, Crotone, Italy.
    • The joint meeting of the 82nd Seminaire Lotharigien de Combinatoire and the 9th Combinatorics Days, April 14 - 17, 2019, Hotel das Termas da Curia, Curia, Portugal.
    • International Conference on Emerging Trends in Graph Theory (ICETGT-2019), February 27-28, 2019, Christ University, Bangalore, India (some photos or even more).
    • Annual Meeting of CIDMA, 25 of January 2019, Politechnic Institute of Viseu, Portugal.
    • PDMAT - Programas Doutorais em Matemática, Summer School 2018, September 3-7 and 10-14, 2018, University of Aveiro, Portugal, Department of Mathematics.
    • Workshop on Research Metrics, 3 September, 2018, University of Porto. Portugal.
    • XIX Congresso da APDIO, September 05-07, 2018, University of Aveiro, Aveiro, Portugal.
    • XIX CLAIO, the Latin-Iberoamerican Conferences on Operations Research, September 24-27, 2018, Lima, Peru.
    • International Congress of Mathematicians - ICM 2018, 1-9 August, 2018, Rio de Janeiro, Brazil.
    • Linear Algebra and Its Applications Workshop - LAAW2018, 30-31 July, 2018, Universidade Federal Fluminense, Niteroi, R.J., Brazil.
    • COMCA 2018, XVII Congreso de Matematicas Capricornio, 25-27 July, 2018, Universidad Antofagasta, Antofagasta, Chile.
    • Encontro Anual CIDMA, 11-12 June, 2018, Department of Mathematics, University of Aveiro, Aveiro, Portugal.
    • Workshop on Graph Spectra, Combinatorics and Optimization, 25-27 January, 2018, University of Aveiro, Portugal.
    • Optimization 2017. Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal, September 6-8, 2017.
    • 2017 Meeting of the International Linear Algebra Society. Hosted by the Department of Mathematics at Iowa State University, July 24-28 2017, Iowa, USA.
    • XVIII Congresso da APDIO - IO2017. Valença, Portugal, 28-30 Jun/2017.
    • ICCOPT - The Fith International Conference on Continouous Optimization, 6-11 August 2016, National Olympics Memorial Youth Center (NYC), Yoyogi and National Graduate Institute for Policy Studies, Roppongi, Tokyo, Japan.
    • Encontro Nacional da Sociedade Portuguesa de Matemática, 11-13 de julho de 2016, Escola Superior de Tecnologia do Barreiro, do Instituto Politécnico de Setúbal, Portugal.
    • Numerical Computations Theory and Algorithms - NUMTA2016, 19-25 June, 2016, Club Med Resort "Napitia", Pizzo Calabro, Calabria, Italy.
    • <Spectra of graphs and applications 2016, May 18-20, 2016, Serbian Academy of Scieneces and Arts, Belgrade, Serbia.
    • CIDMA2016 - A meeting of the Center for Research & Development in Mathematics and Applications, January 21-22, 2016, Department of Mathematics of University of Aveiro, Aveiro.
    • MATTRIAD 2015, 7-11 September 2015, Department of Mathematics of University of Coimbra,Coimbra.
    • IO2015 -XVII Congresso da APDIO, 7-9 September 2015, Portalegre, Portugal.
    • 27th European Conference on Operational Research, 12 - 15 July, 2015, University of Strathclyde, Glasgow.
    • 13th EUROPT Workshop on Continuous Optimization, 8-10 July, 2015, University of Edinburgh, Edinburgh.
    • XXIII Congresso de Matemática Capricornio - COMCA 2014, 6 - 8 August, 2014, University of Atacama, Copiapó, Chile.
    • Optimization 2014, 28 - 30 July, 2014, School of Engineering, University of Minho, Guimarães, Portugal.
    • Encontro Nacional da SPM 2014, 14-16 Julho, UNL-Campus da Caparica, Lisboa, Portugal.
    • 20th Conference of  the International Federation of Operational Research Societies - IFORS, 13-18 July, 2014, Barcelona, Spain.
    • Matrices & Operators - Workshop with Abraham Berman, June 3-4, 2014, Coimbra, Portugal.
    • 4th Combinatorics Day - In honour of Raul Cordovil, Department of Mathematics of the University of Aveiro, May 14, 2014
    • 3rd International Symposium on Combinatorial Optimization - ISCO 2014, March 5-7, 2014, Lisbon, Portugal.
    • EURO mini-Conference on Optimization in the Natural Sciences, 5th-9th February, 2014, University of Aveiro, Portugal.
    • DGS 2013 – International Conference and Advanced School Planet Earth, Dynamics, Games and Science, Portugal, 28 August to 7 September 2013.Mini Symposiun on Graphs and Combinatorics (Speakers and talks and Abstracts), September 3-4, Calouste Gulbenkian Foundation, Lisbon, Portugal.
    • MAT TRIAD 2013, September 16-20, 2013, Herceg-Novi, Montenegro.
    • 1rst Portuguese Meeting on Mathematics for Industry, June 6-8, 2013, Porto, Portugal.
    • XVI Congresso da Associação Portuguesa de Investigação Operacional - IO2013, June 3 - 5, 2013, Bragança, Portugal.
    • 26th Conference of the European Chapter on Combinatorial Optimization - ECCO XXVI, May 30 to June 1, 2013, Paris, France.
    • ICORES 2013 – 2nd International Conference on Operational Research and Enterprise Systems, February 16-18, 2013, Barcelona, Spain.
    • CIDMA2013 - Meeting of the Center for Research & Development in Mathematics and Applications (CIDMA), January 21-23, 2013, Department of Mathematics, University of Aveio, Portugal.
    • CLAIO - Congresso Latino-Iberoamericano de Investigação Operativa, September 24-28, 2012,  Rio de Janeiro, Brazil.
    • LIA-SGT Workshop, September 24-28, 2012,  Rio de Janeiro, Brazil.
    • The Paths of Combinatorial Optimization Applications in Portugal, September 5-7, 2012,  Sabrosa (Alto Douro), Vila Real, Portugal.
    • VIII International Colloquium on Graphs and Optimization, Leukerbad, Switzerland, August 13-17, 2012.
    • 25th European Conference on Operational Research, Vilnius, Lithuania, July 8 – 11, 2012.
    • ECCO 2012, 25th Conference of European Chapter on Combinatorial Optimization, Antalya, Turkey, April 26 – 28, 2012.
    • Optimization 2011, Universidade Nova de Lisboa, Caparica, July 24-27, 2011.
    • Directions in Matrix Theory, Coimbra, July 9-10, 2011.
    • 2nd Istanbul Design Theory, Graph Theory and Combinatorics Conference, Koç University, Istanbul, Turkey, June 27 - July 01, 2011.
    • IO 2011 - 15o Congresso da APDIO, Coimbra, Portugal, April 18-20, 2011.
    • XX Congreso de Matemática Capricornio, Universdad de Tarapacá, Arica, Chile, August 4-5, 2010.
    • 3rd Polish Combinatorial Conference, Bedlewo, Poland, September 24-30, 2010.
    • Encontro de Algebristas Portugueses 2010, Covilhã, Portugal, September 16-18 , 2010.
    • EngOpt 2010, 2nd International Conference on Engineering Optimization, Lisboa, Portugal, September 6-9, 2010.
    • EURO XXIV - 24th European Conference on Operational Research, Lisboa, Portugal, July 11-14, 2010.
    • 8th EUROPT Workshop on ADVANCES IN CONTINUOUS OPTIMIZATION, July 9-10, 2010, Aveiro, Portugal.
    • 16th Conference of the International Linear Algebra Society, Pisa, Italy, June 21-25, 2010.
    • Coimbra Meeting on 0-1 Matrix Theory and Related Topics, Department of Mathematics, University of Coimbra, Portugal, June 17-19, 2010.
    • ALIO-INFORMS 2010 Joint International Meeting, Cluster on Graph Spectra with Application on Combinatorial Optimization, Buenos Aires, June 6-9, 2010.
    • 14º Congresso da Associação Portuguesa de Investigação Operacional, Faculdade de Ciências e Tecnologia da UNL, Lisboa, September 7-9, 2009.
    • Congreso de Matemática Capricornio 2009 (COMCA 2009), Universidad Católica del Norte, Antofagasta, Chile, August 5-7, 2009.
      • Photos in Santiago de Chile: with Enide and Ivan Gutman at downtown; with Enide and Liliana during a breakfast.
      • Photos in Antofagasta: with Maria Robbiano et al, in Luis Medina home; with Liliana, Ivan Gutman, Enide and Maria Robbiano; with Enide, Luis Medina and Maria Robbiano; with Enide and Nair Abreu; Enide, Liliana, Oscar Rojo, Rosita, Maria Robbiano and Raul Jimenez.
    • 23rd European Conference on Operational Research, Bonn, July 5-8, 2009.
    • 7th EUROPT Workshop "Advances in Continuous Optimization", Remagen, Germany, July 3-4, 2009.
    • DIMAP workshop on Algorithmic Graph Theory, University of Warwick, 23 to 25 March, 2009.
      • AGT photos: group photo.
    • Jornadas dedicadas à "Matemática Aplicada à Engenharia" e à "Engenharia Biomédica", Instituto Superior de Engenharia de Coimbra (ISEC), 14 de Janeiro de 2009.
    • Workshop on Spectral Graph Theory with Applications in Computer Science, Combinatorial Optimization and Chemistry, Rio de Janeiro, 1-4 December, 2008.
    • Graph Theory, Computational Intelligence and Thought - A Conference Celebrating Martin Charles Golumnic's 60th Birthday, Jerusalem on September 19-20, Sea of Galilee on September 21-24 and at the University of Haifa on September 25, 2008.
    • Encontro Nacional da Sociedade Portuguesa de Matemática, Coimbra, 25-28 de Junho, 2008.
    • 13º Congresso da APDIO - IO2008, UTAD, Vila Real, March 17-19, 2008.
    • RoboMat 2007 -Workshop on Robotics and Mathematics, Coimbra, 17-19 September, 2007.
    • OPTIMIZATION2007, Porto, Portugal, July 22-25, 2007.
    • Berlin-Poznan Seminar/Learn & Workshop on Random Graphs and Extremal Graph Theory, Humboldt University Berlin, 6-7 July, 2007.
    • 6th Slovenian International Conference on Graph Theory Bled, Slovenia, 24-30 June, 2007.
    • Conference on Graph Theory on the Occasion of the 80th Birthday of Professor Horst Sachs Ilmenau, March 27-30, 2007.
    • Iberian Conference in Optimization, Coimbra, Portugal, 16-18 November, 2006.
    • IO 2006 - 12º Congresso da Apdio, Lisboa, Portugal, Outubro 8-11, 2006.
    • Spectra of Graphs and Applications (SGA): Conference devoted to the 40 years of scientific work jubilee of Academician Dragos Cvetkovic, Belgrade, Serbia, September 5, 2006.
      • SGA photos: Listening a few additional Cvetkovic's words; the audience; listening Sachs; Stevanovic, Abreu and Miguel; with Pisanski, Simic and Gutman; Cvetkovic, Nevenka and Sachs. See more here.
    • MAGT, Belgrade, Serbia, September 1-4, 2006.
      • MAGT2006 photos: picture 1, picture 2, picture 3 and picture 4. See more at the website of the Conference.
    • EURO XXI in Iceland, July 2-5, 2006, Reykjavik.
      • A few pictures from Iceland (part 1 and part 2) by L. Cavique, C. Henggler, C. Luz, Tó Zé Rodrigues, J. Freire de Sousa and myself.
    • Workshop on Advances in Continuous Optimization, Reykjavik, Iceland, Friday June 30 and Saturday July 1, 2006.
    • Encontro Nacional da Sociedade Portuguesa de Matemática, Lisbon, Portugal, 20-23 June, 2006.
    • Working Afternoons SPM/CIM 2005/2006 - Optimization, Complexo do Observatório Astronómico da Universidade de Coimbra, May 6, 2006, Coimbra, Portugal (see the report).
    • Aveiro Workshop on Graph Spectra, 10-12 April, 2006, University of Aveiro, Aveiro, Portugal.
    • INFORMS Annual Meeting, November 13-16, 2005, San Francisco, USA.
      • Photos
        • with Vadim Lozin during the welcome reception;
        • with Joaquim Júdice, Paula Amaral and Jorge Freire in a down town restaurant;
        • with Joaquim Júdice and Paula Amaral, near the bay bridge.
    • 17th EURO Mini Conference: Continuous Optimization in Industry, June 29, July 1, 2005, Pécs, Hugary (see the report by Gerhard-Wilhem Weber).
    • European Chapter on Combinatorial Optimization ECCO XVIII - Combinatorics for modern manufacturing, logistics, and supply chains, Minsk, May 26-28, 2005.
      • A photo of CEOC participants with Olga during a tea break.
    • International Network Optimization Conference - INOC, March 20-23, Lisbon, Portugal.
    • XXXVI SBPO - Simpósio Brasileiro de Pesquisa Operacional, 23-26 de Novembro de 2004, São João del-Rei, MG, Brasil.
      • Phothos of some places in the neighborhood of São João del-Rei
        • with Eugénia Captivo and Jorge Freire in Ouro Preto,
        • and with Eugénia Captivo, João Clímaco and Jorge Freire (the Portuguese participants) in Tiradentes.
    • Optimization 2004, July 25-28, Lisbon, Portugal.
    • Graph Theory 2004: a conference in memory of Claude Berge, Paris, July 5-9, 2004.
      • A photo with Celina Figueiredo, Paula Rama and Sulamita Klein
    • Workshop on Challenges of Continuous Optimization in Theory and Applications, Rhodes, July 2-3, 2004.
      • Some photos
        • with Ergence, Akhmet, Bulent, Terlaky, Kaya, Burachik, Bartkute, Nemirovski, Sakalauskas and Hayfavi,
        • with L. Sakalauskas, V. Bartkute, S. Sniedovich and his wife,
        • and with everybody.
    • Combinatorics in Oporto, September 12-17, 2003.
    • 18th International Symposium on Mathematical Programming, 18-22 August, 2003, Copenhagen, Denmark.
      • Photo of most of Portuguese participants.
    • Thirty-fourth Southestearn International Conference on Combinatorics, Graph Theory, and Computing , March 3-7, 2003, Boca Raton, Florida, USA.
    • XI Latin-Iberian American Congress of Operations Research (CLAIO), 27-31 October, 2002, Concepción, Chile.
      • Photo with Jorge Freire and Soeiro Ferreira, in a typical restaurant of Santiago.
    • 56th Meeting of the European Working Group " Multiple Criteria Decison Aiding", 3-5 October, 2002, Coimbra, Portugal.
    • Fourth Cracow Conference on Graph Theory " CZORSZTYN'02", 16-20 September, 2002, Czorsztyn, Poland.
      • Altogether photo.
      • Photo of my rafting group.
    • Symetries in Graphs, Maps and Complexes, SIGMAC'02, 15-19 July, 2002, Aveiro, Portugal.
    • Summer School on Discrete Mathematics, 25-27 June, 2002, Coimbra, Portugal.
    • IO'2002 - 10th Portuguese OR Conference, April 16-19, Guimarães, Portugal.
    • Workshop Latino-Americano de Cliques em Grafos, 17-19 April, 2002, Rio de Janeiro, Brasil.
      • Photo of most of participants.
    • IO'2002 - 10th Congress of the Portuguese Operations Research Society, 24-27 March, 2002, Guimarães, Portugal.
    • Encontro Nacional da Sociedade Portuguesa de Matemática, 5-8 February, 2002, Coimbra, Portugal.
    • School on Integer Programming and Combinatorial Optimization, 4-7 June, 2001, Coimbra, Portugal.
      • Photo of Gerard Cornuéjols with the participants from CEOC.
    • Optimization 2001, 23-25 July, 2001, Aveiro, Portugal.
      • Invited speakers photo.
      • Session to honour Ernesto Martins organized by Douglas R. Shier (photo)
      • Photo with Sherali, Overton, Rechenberg, Judice, Terlaky and many others.
    • 17th European Conference on Operational Research, July 16-19, 2000, Budapest, Hunagary.
      • Photowith Filipa Carvalho and Henggler Antunes.
    • 1st MCDM Forum, June 8, 2000, Aveiro, Portugal.
      • Altogetherphoto.
    • 4th International Conference on Operations Research, March 7-13, 2000, Habana, Cuba.
      • In a street of Habana with friends (photo).
      • Photo with Ernesto Martins and João Clímaco, tasting the Floridita's daiquiri.
    • IO'2000 - 9th Portuguese OR Conference, April 16-19, Setúbal, Portugal.
    • IFORS'99 Conference, August 16-20, 1999 Beijing, China.
      • Photowith several friends.
      • Photo with my son at the Great Wall.
    • IO'98 - 8th Portuguese OR Conference, 29 November - 2 December, Faro, Portugal.
      • At the congress dinner with Carlos Luz and Zé Fernando Gonçalves.
    • IO'96 - 7th Portuguese OR Conference, April 1-3, Aveiro, Portugal.
      • Several Portuguese OR-friends, much younger than they are now (photo).