International Conference on
Enumerative Combinatorics and Applications
ICECA 2023 (September 4-6, 2023)

Pervious Conferences: ICECA2022


Enumerative combinatorics is a dynamic subfield of the mathematical sciences with many challenging research problems, ingenious and sophisticated techniques, and important applications in various scientific fields. Questions from a broad range of areas, including algebra, topology, probability, computer science, physical, chemical and biological sciences, have some surprising hidden combinatorial structures that require enumerative methods for their solution. The aims of this conference are
  •  to highlight the recent significant theoretical advances in enumerative and analytic combinatorics;
  •  to showcase the important new applications of enumerative combinatorics to problems arising in other scientific disciplines;
  •  to discuss new questions, ideas, and methods of an enumerative nature from various scientific fields;
  •  to bring together researchers of various backgrounds and experience from several fields whose research utilizes or touches upon enumerative techniques.


Chair: Toufik Mansour University of Haifa
Co-chairs: Mark Dukes University College Dublin, Ilias Kotsireas Wilfrid Laurier University, Yuval Roichman Bar-Ilan University, Armend Sh. Shabani University of Prishtina, Alek Vainshtein University of Haifa, Gökhan Yıldırım Bilkent University.

Program (under construction)

First Day, Sept 4, 2023, Israel time (IDT zone time)
      Log in time(15:00-15:55)
      Opening (15:55-16:00)
      Richard Stanley Massachusetts Institute of Technology
           Title: "My favorite posets", Abstract (16:00-16:50)
      Kathy Qing Ji Tianjin University
           Title: "Bressoud's conjecture on the Rogers-Ramanujan identities", Abstract (17:00-17:30)
      TBA (17:35--17:50)
      TBA (17:55--18:10)
      Gil Kalai Hebrew University
           Title: "Beyond the g-conjecture – algebraic combinatorics of cellular spaces", Abstract (18:15--19:05)
      François Bergeron Université du Québec à Montréal
           Title: "Macdonald eigenoperators, why and how", Abstract (19:10-19:40)
      TBA (19:45-20:00)
      TBA (20:05--20:20)
      Closing first day (20:25-20:30)

Second Day, Sept 5, 2023, Israel time (IDT zone time)
      Log in time(15:00-15:55)
      Opening (15:55-16:00)
      William Y.C. Chen Tianjin University
           Title: "The idea of a grammatical calculus", Abstract (16:00-16:50)
      Helmut Prodinger University of Stellenbosch
           Title: "Skew Dyck paths, associated trees and some enumeration results", Abstract (17:00-17:30)
      TBA (17:35--17:50)
      TBA (17:55--18:10)
      Persi Diaconis Stanford University
           Title: "Enumerative combinatorics for the Luce model for random permutations", Abstract (18:15--19:05)
      Bruce Sagan Michigan State University
           Title: "Chromatic symmetric functions and change of basis", Abstract (19:10-19:40)
      TBA (19:45-20:00)
      TBA (20:05--20:20)
      Closing second day (20:25-20:30)

Third Day, Sept 6, 2023, Israel time (IDT zone time)
      Log in time(15:00-15:55)
      Opening (15:55-16:00)
      Mireille Bousquet-Mélou CNRS, LaBRI, Université de Bordeaux
           Title: "Posets in the Tamari family and their intervals", Abstract (16:00-16:50)
      Catherine Yan Texas A&M University
           Title: "U-parking functions and (p,q)-parking functions", Abstract (17:00-17:30)
      TBA (17:35--17:50)
      TBA (17:55--18:10)
      Ira Gessel Brandeis University
           Title: "Problems in enumerative combinatorics", Abstract (18:15--19:05)
      Anne Schilling University of California, Davis
           Title: "Promotion and growth diagrams for fans of Dyck paths and vacillating tableaux", Abstract (19:10-19:40)
      TBA (19:45-20:00)
      TBA (20:05--20:20)
      Closing third day (20:25-20:35)


To register for the conference, please email the conference's organizing committee chair, Toufik Mansour, at with the following information:
  1. The subject line "ICECA-2023";
  2. Please include your name and surname in the new two lines;
  3. Please include your affiliation in a new line;
  4. If you want to present a contributed talk at the conference, then in a new line, state this and attach an extended abstract of at most six pages. All submissions will receive full consideration. We encourage submissions from Ph.D. students and early career researchers. The conference will have space for 12 contributed talks (each 15 minutes in length).

Registration will close at the end of June.

We will decide on the selection of contributed talks in the last week of July.

There is no registration fee for the conference participants. Approximately one week before the conference, registered participants will receive an email with instructions on attending the virtual conference. Note that the official language of the conference is English.

Note: Please be aware that the conference is virtual, so be wary of any scam e-mails requesting assistance with travel and lodging concerns linked to the conference.

List of Registrations (in alphabetical order)