PP2025, to be held July 7-11, 2025 at University of St. Andrews, Scotland
Plenary speakers: TBA

PP2024, held June 10-14, 2024 at University of Idaho,  Moscow, Idaho
Plenary speakers: Zachary Hamaker and Lara Pudwell
Supported by NSF grant DMS-2246773

PP2023, held July 3-7, 2023 at University of Burgundy, Dijon, France
Plenary speakers: Torsten Mütze and Jay Pantone
Supported by NSF grant DMS-2246773

PP2022, held June 20-24, 2022 at Valparaiso University, Valparaiso, Indiana
Plenary speakers: Mathilde Bouvel and Pamela Harris
Supported by NSF grant DMS-1901853 and NSA grant H98230-20-1-0286.

PP2021 Virtual Workshop, held June 15-16, 2021 virtually (due to COVID-19 pandemic), hosted by University of Strathclyde
Plenary speakers: Luca Ferrari and Lucas Gerin
Special Issue: Enumerative Combinatorics and Applications 2(4), 2022.

PP2020 Virtual Workshop, held June 30-July 1, 2020 virtually (due to COVID-19 pandemic), hosted by Valparaiso University
Plenary speakers: Henning Úlfarsson and Catherine Yan

PP2019, held June 17-21, 2019 at University of Zurich, Switzerland
Plenary speakers: Neal Madras and Bridget Tenner
Special Issue:  Discrete Mathematics & Theoretical Computer Science 22(2), 2023.
Supported by NSF grant DMS-1901853

PP2018, held July 9-13, 2018 at Dartmouth College, Hanover, New Hampshire
Plenary speakers: Sara Billey and Robert Brignall
Special Issue: Discrete Mathematics & Theoretical Computer Science 21(2), 2019.
Supported by NSF grant DMS-1764236 and NSA grant H98230-18-1-0231

PP2017, held at Reykjavik University, Iceland
Plenary speakers: Vit Jelinek and Peter Winkler
Special Issue: (joint with PP2016) Discrete Mathematics and Theoretical Computer Science 19 (2), 2018.
Supported by NSF grant DMS-1703927

PP2016, held at Howard University, Washington, DC
Plenary speakers: Anders Claesson and Ira Gessel
Special Issue: (joint with PP2017) Discrete Mathematics and Theoretical Computer Science 19 (2), 2018.
Supported by NSF grant DMS-1629726

PP 2015, held at De Morgan House in London, England
Plenary speakers: Bruce Sagan and Peter Cameron.
Special Issue: Discrete Mathematics and Theoretical Computer Science 18 (2), 2016.

PP 2014, held at East Tennessee State University, Johnson City, Tennessee
Plenary speakers: Sergey Kitaev and Carla Savage.
Special Issue: Australasian Journal of Combinatorics 64 (1), 2016.
Supported by NSF grant DMS-1362322

PP 2013, held at the University of Paris 7 Denis Diderot, Paris, France
Plenary speakers: Sergi Elizalde and Stéphane Vialette.
Special Issue: Journal of Combinatorics 6 (1-2), 2015.
Supported by NSF grant DMS-1265936 and NSA grant H98230-13-1-0277

PP 2012, held at the University of Strathclyde, Glasgow, Scotland
Plenary speakers: Vince Vatter.
Special Issue: Pure Mathematics and Applications 24 (2), 2013.

PP 2011, held at California Polytechnic State University, San Luis Obispo, California
Plenary speakers: Igor Pak and Jeff Remmel.
Special Issue: Pure Mathematics and Applications 23 (3), 2012.
Supported by NSF grant DMS-1105569

PP 2010, held at Dartmouth College in Hanover, New Hampshire, USA
Plenary speakers: Nik Ruškuc and Richard Stanley
Special Issue: Pure Mathematics and Applications 22 (2), 2011.
Supported by NSF grant DMS-1003908

PP 2009, held at the University of Florence in Florence, Italy
Plenary speaker: Einar Steingrímsson
Special Issue: Pure Mathematics and Applications, 21 (2), 2010.

PP 2008, held at the University of Otago in Dunedin, New Zealand
Plenary speaker: Mireille Bousquet-Mélou
Special Issue: Annals of Combinatorics 14(1), 2010.

PP 2007, held at the University of St. Andrews in St. Andrews, Scotland
Plenary speakers: Mike Atkinson and Martin Klazar
Special Issue: Permutation Patterns, LMS Lecture Note Series 376, 2010.

PP 2006, held at Reykjavik University in Reykjavik, Iceland
Plenary speaker: Michael Albert
Special Issue: Annals of Combinatorics 11 (3–4), 2007.

PP 2005, held at the University of Florida in Gainesville, Florida
Plenary speaker: Doron Zeilberger
Special Issue: Advances in Applied Mathematics 36 (2), 2006.

PP 2004, held at Malaspina University-College in Nanaimo, British Columbia, Canada
Plenary speakers: Miklós Bóna and Gabor Tardos

PP 2003, held at the University of Otago in Dunedin, New Zealand
Plenary speaker: Herbert Wilf
Special Issue:: Electronic Journal of Combinatorics 9 (2), 2002–2003.

 

The header image was created by the organizers of PP 2015 using Wordle.