Virtual workshop, 15th & 16th June 2021, hosted by the Combinatorics Group at the University of Strathclyde.

 Programme   Registration   Abstract Submission   Participants   Photo   Proceedings   Committees   Previous Conferences 


 Keynote speakers 

  Luca Ferrari, University of Florence, Italy    Lucas Gerin, École Polytechnique, Paris, France 


123  Programme  123


        Videos of the two keynote addresses can be found here.

        A two-page summary of the programme can be found here. Hyperlinks open the abstracts, slides and videos.

        A single document that includes all the abstracts can be found here.

        Permutation patterns: basic definitions and notation can be found here.

All workshop activities will take place online. Registered participants will receive a Zoom link for the sessions, along with links to the pre-recorded keynote addresses so they can be watched asynchronously.

There will be four sessions on both days. During Sessions A, B and D (one hour), six speakers will each give a five minute presentation and then take questions. During Session C (thirty minutes), one of the keynote speakers will give a 10–15 minute summary of their address, followed by an opportunity for discussion. The full pre-recorded keynote address will be streamed online during the break immediately prior to Session C for the benefit of those who weren’t able to watch it earlier.

The synchronous sessions will take place during the late afternoon and evening in Europe. Here are the times in some other locations.



Registration for Permutation Patterns 2021 is free, but you must sign up in advance. Only registered participants will have access to the pre-recorded keynote addresses and login information for the synchronous panel discussions of contributed work.

To register for the Permutation Patterns 2021 Virtual Workshop, please email, giving your name, affiliation and email address. In order to help with future grant applications, please would you also provide:

        your academic status (one of “undergraduate”, “graduate”, “postdoc”, “junior faculty/researcher”, “senior faculty/researcher”, or “other”),

        your gender, and

        your country of affiliation.

Thanks very much.

Registered participants


   Abstract Submission 

All participants are invited to submit an abstract on a topic related to the conference and give a 5–10 minute presentation (further details will be provided after the programme has been finalised).

To submit an abstract, please prepare it according to the instructions given in the template: [link to LaTeX file, link to PDF file] and email both the LaTeX file and the PDF file to by 31st May. We will aim to notify you regarding the acceptance of your abstract within a few days of submission. Thanks.

When preparing your abstract and talk, you should assume as common knowledge everything in this document: Permutation patterns: basic definitions and notation.

All contributed work will be presented as short (5–10 minute) talks, with slides shared online in advance of the workshop. The synchronous part of the workshop will allow speakers on similar themes to participate in conversation, together with anyone else interested in joining them.



A special issue of Enumerative Combinatorics and Applications (ECA) has been published to mark the conference. It is ECA Volume 2 Issue 4, which can be found at



PP2021 Organizing Committee

 David Bevan
 Kittitat Iamthong
 Sergey Kitaev (chair)
 Einar Steingrímsson
 Dan Threlfall

PP2021 Programme Committee

 David Bevan
 Sergey Kitaev
 Einar Steingrímsson

PP Permanent Steering Committee

 Michael Albert (chair), University of Otago, New Zealand
 Mathilde Bouvel, CNRS, LORIA, Nancy, France
 Alexander Burstein, Howard University, USA
 Luca Ferrari, University of Florence, Italy
 Sergey Kitaev, University of Strathclyde, UK
 Jay Pantone, Marquette University, USA
 Lara Pudwell, Valparaiso University, USA
 Alexander Woo, University of Idaho, USA


   Previous Conferences and Virtual Workshops 

A Permutation Patterns Conference or Virtual Workshop has been held every year since the inaugural one in New Zealand in 2003. Information about previous years can be found here.