About

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.

Organizers

Chair: Toufik Mansour University of Haifa
Co-chairs: Ron Adin Bar-Ilan University, 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.

Program Final

First Day, August 25, 2025, 16:00-20:20 Israel time (IDT zone time)

      Log in time(15:00-15:50)
      Opening: Toufik Mansour (15:50-16:00)
      Chair: Alek Vainshtein
      Richard Stanley Massachusetts Institute of Technology, Interview with Richard P. Stanley
           Title: Symmetric functions arising from a theta function of Ramanujan, Abstract (16:00-16:50) Watch the talk
      Mei Yin University of Denver
           Title: Fixed points and cycles of parking functions, Abstract (16:55-17:10) Watch the talk
      Doron Zeilberger Rutgers University, Interview with Doron Zeilberger
           Title: Why counting counts? Abstract (17:15-18:05) Watch the talk
      David Bevan University of Strathclydes
           Title: Irrational enumeration: analytic combinatorics for objects of irrational size, Abstract (18:10-18:25) Watch the talk
      Chair: Olya Mandelshtam
      Maria Chudnovsky Princeton University, Interview with Maria Chudnovsky
           Title: How to bound treewidth: structure and algorithms, Abstract (18:30-19:20) Watch the talk
      Michael Wallner TU Graz
           Title: Combinatorics of nondeterministic walks, Abstract (19:25-19:40) Watch the talk
      Igal Sason Technion
           Title: Schrijver's ϑ-function need not upper bound the Shannon capacity of a graph, Abstract (19:45-20:00) Watch the talk
      Closing first day (20:00-20:20)

Second Day, August 26, 2025, 16:00-20:00 Israel time (IDT zone time)
      Log in time(15:00-15:50)
      Opening (15:55-16:00)
      Chair: Armend Sh. Shabani
      Sylvie Corteel University of California Berkeley
           Title: Crystal skeletons: Combinatorics and axioms, Abstract (16:00-16:50) Watch the talk
      Olya Mandelshtam University of Waterloo
           Title: A probabilistic bijection for non-attacking fillings, Abstract (16:55-17:10) Watch the talk
       Sheila Sundaram University of Minnesota, Interview with Sheila Sundaram
           Title: Some properties of a variant of Lie_n, Abstract (17:15-18:05) Watch the talk
      Chair: Margaret A. Readdy
      Leonardo Saud Maia Leite KTH Royal Institute of Technology
           Title: Order polytopes of crown posets, Abstract (18:10-18:25) Watch the talk
      Gyula O.H. Katona Hungarian Academy of Sciences, Interview with Gyula O.H. Katona
           Title: Sharpenings of the Erdős-Ko-Rado theorem, Abstract (18:30-19:20) Watch the talk
      Gábor Hetyei UNC Charlotte
           Title: Labeling regions in deformations of graphical arrangements, Abstract (19:25-19:40) Watch the talk
      Closing second day (19:40-20:00)

Third Day, August 27, 2025, 16:00-20:00 Israel time (IDT zone time)
      Log in time(15:00-15:55)
      Opening (15:55-16:00)
      Chair: Yuval Roichman
      Ron Aharoni Technion
           Title: Intersections of matroids, Abstract (16:00-16:50) Watch the talk
      Chao Xu Université Lyon 1
           Title: A multivariable generalization of Stirling-Eulerian polynomials, Abstract (16:55-17:10) Watch the talk
      Francesco Brenti University of Rome “Tor Vergata”, Interview with Francesco Brenti
           Title: Combinatorics of Cuntz algebras, Abstract (17:15-18:05) Watch the talk
      Chair: Alek Vainshtein
      Shaul Zemel Hebrew University
           Title: Generalized Higher Specht Polynomials and their Stabilizations, Abstract (18:10-18:25) Watch the talk
      Vít Jelínek Charles University
           Title: How fast can permutation classes sort? Abstract (18:30-19:20) Watch the talk
      David Fischer Princeton University
           Title: Treewidth and outerstring graphs, Abstract , (19:25-19:40) Watch the talk
      Closing third day (19:40-20:00)

Poster videos

Among all the submission the Scientific Committee selected 10 poster videos. Videos will be published in the Conference channel in You-Tube:
Mohsen Aliabadi, Classifying abelian groups through acyclic matchings, Watch the talk
David Ash, An explicit power series result for the two type ASEP, Watch the talk
Eli Berger, The meshulam game for hypergraphs and coloring the intersection of two matroids, Watch the talk
Daniel Checa, Arndt Compositions: connections with Fibonacci numbers, statistics, and generalizations, Watch the talk
Hiranya Kishore Dey, Enumerating alternating-runs with sign in type A and type B Coxeter groups, Watch the talk
Durand Francis, A random sampler for rook placements in Ferrers board, Watch the talk
Shi-Mei Ma, On the joint distribution of excedances, fixed points and cycles, Watch the talk
Krishna Menon, Topology of permutation patterns, Watch the talk
Samrith Ram, Subspace profiles, q-Whittaker functions and Krylov subspace methods, Watch the talk
Feng Zhao, Some recently results on Ballot permutations and words, Watch the talk

Registration COMPLETED.

To register for the conference, please the conference's organizing committee chair, Toufik Mansour, at eca.math.journal@outlook.com with the following :
  1. The subject line "ICECA-2025";
  2. Please include your name and surname, affiliation, and email address in the following format: Name, surname, affiliation, email
  3. If you want to present a contributed talk/contributed poster video at the conference, then in a new line, state this and attach an extended abstract of 4-5 pages (include the bibliography) on 12 size font. 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 and 12 contributed poster videos (each 15 minutes in length).

Registration will close at the end of June.

We will decide on the selection of contributed talks on middle of June (Submission Deadline: May 30, 2025). The deadline is over

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 Participants (in alphabetical order) [If we missed your name, please email Toufik Mansour at tmansour@univ.haifa.ac.il. Many Zoom display names did not match our registration list]

a
• Senthil A
a
• Praise Adeyemo
a
• Ron Adin
a
• Karim Adiprasito
a
• Anshu Agarwal
a
• Ron Aharoni
a
• Yasmeen Akhtar
a
• Chudamani P.A. Kumar
a
• Margaret Archibald
a
• David Ash
a
• Nithish D. Avalakunta
a
• Jean-Luc Baril
a
• Margaret Bayer
a
• Margherita Barile
a
• Delcroix-Oger Bérénice
a
• Abraham Berman
a
• David Bevan
a
• Allan Bickle
a
• Andreas Blass
a
• Aubrey Blecher
a
• Francesco Brenti
a
• Johsneik Briceño Bonilla
<--
• Thomas Britz
--> a
• Tricia Brown
a
• Seok Hyun Byun
a
• David Callan
• a
• Luisa Carini
a
• Sheng Chen
a
• William Y.C. Chen
a
• Gi-Sang Cheon
a
• Maria Chudnovsky
a
• Roberto Conti
a
• Sylvie Corteel
a
• Danai Deligeorgaki
a
• Stoyan Dimitrov
a
• Rui Duarte
a
• Christos Efrem
a
• Richard Ehrenborg
a
• Ojonugwa Ejima
a
• Sergi Elizalde
a
• Sen-Peng Eu
a
• Chaim Even-Zohar
a
• Leonid Fel
a
• David Fischer
a
• Joel Friedman
a
• Tamar Friedmann
a
• Shanzhen Gao
a
• Juan B. Gil
a
• Shoni Gilboa
a
• Darij Grinberg
a
• Kritika Gupta
a
• Ervin Gyori
a
• Sulieman Hamud
a
• Evan Henning
a
• Gabor Hetyei
a
• Jia Huang
a
• Vít Jelínek
a
• Yuhan Jiang
a
• Daniel Kalmanovich
a
• Gyula O.H. Katona
a
• Anton Khoroshkin
a
• Arnold Knopfmacher
a
• Pavol Kollár
a
• Shanmugam Kotala
a
• Ilias Kotsireas
a
• Noam Krupnik
a
• Christian Krattenthaler
a
• Hung Le
a
• Mesfin Masre Legese
a
• Yifei Li
a
• Feihu Liu Liu
a
• Teemu Lundström
a
• Shi-Mei Ma
a
• Yaakov Malinovsky
a
• Olya Mandelshtam
a
• Jead Macalisang
a
• Debyani Manna
a
• Ronit Mansour
a
• Lucy Martinez
a
• Krishna Menon
a
• Gregory Morrow
a
• Arnauld Mwafise
a
• Olivia N. Nabawanda
a
• Philippe Nadeau
a
• Sandra Nanding
a
• Neetu
a
• Fidel Oduol
a
• Soichi Okada
a
• David A. Oluyori
a
• Shmuel Onn
a
• Moe Moe Oo
a
• Lahcen Oussi
a
• Leonard Paleta
a
• Jennifer Pama
a
• Vasiliki Petrotou
a
• Thomas Prellberg
a
• Helmut Prodinger
a
• Ying Anna Pun
a
• Nithish Kumar R
a
• Sundar Rajan R
a
• Samrith Ram
a
• Jose L. Ramirez
a
• Margaret Readdy
a
• Yuval Roichman
a
• Brandon Rowekamp
a
• Sarang Sadawarte
a
• Amir Safadi
a
• Andrés D. Santamaría-Galvis
a
• Igal Sason
a
• Leonardo Saud Maia Leite
a
• Anne Schilling
a
• Michael Schlosser
a
• Matthias Schork
a
• Armend Sh. Shabani
a
• Jeffrey Shallit
a
• Mark Shattuck
a
• Vladimir Shlyk
a
• Amir Shoan
a
• Anurag Singh
a
• Sara Solhjem
a
• Chunwei Song
a
• Richard Stanley
a
• Salvatore Stella
a
• Xun-Tuan Su
a
• Sheila Sundaram
a
• Steve Tanny
a
• Ioannis Tasoulas
a
• Akalu Tefera
a
• Mark Tiefenbruck
a
• Arnel B. Toledo
a
• Natalia Tsilevich
a
• Paul Vaderlind
a
• Alek Vainshtein
a
• Yegnanarayanan Venkataraman
a
• Loumngam K. Victor
a
• Michael Wallner
a
• David Wang
a
• Monica M.Y. Wang
a
• Xiaozheng Wang
a
• Xiangdong Wen
a
• Peter Winkler
a
• Qiqi Xiao
a
• Chao XU
a
• Sherry H.F. Yan
a
• Gökhan Yıldırım
a
• Mei Yin
a
• Raphael Yuster
a
• Doron Zeilberger
a
• Shaul Zemel
a
• Jiang Zeng
a
• Feng Zhao