Journal of Algebraic Combinatorics

This special issue of Journal of Algebraic Combinatorics (JACO) will include selected refereed papers presented at 8th Workshop on Design Theory, Hadamard Matrices and Applications (HADAMARD 2025) conference held on May 26-30, 2025 in Seville, Spain (https://gestioneventos.us.es/hadamard2025).

All papers will be refereed according to the high standards of JACO. Submission of high-quality, original research papers which were not presented at the workshop but fit into the scope of the special issue is also welcome. Specific topics include, but are not limited to:

• Hadamard matrices and any of their variants/generalizations: Complex Hadamard matrices, Butson-type, GH over groups, Dihedral and Quaternionic Hadamard matrices, weighing matrices, cocyclic matrices, orthogonal designs/arrays, and so on.
• Algebraic and Combinatorial Designs (Association schemes, difference sets, covering arrays, sequences, Autocorrelation, Boolean functions and so on).
• Quantum information theory (Mutually unbiased bases, SIC-POVMs, applications to quantum computing and so on).
• Construction of error-correcting codes, quantum codes, network codes and cryptography related to combinatorial structures.

Guest editors
Víctor Álvarez (Universidad de Sevilla, Spain).
José Andrés Armario (Universidad de Sevilla, Spain).
Ronan Egan (Dublin City University, Ireland).
Karol Zyczkowski (Jagiellonian University, Poland).

Paper Submission
Authors should submit their work to the Journal of Algebraic Combinatorics via the online platform: https://www.editorialmanager.com/jaco/default.aspx

Important Dates:
Submission deadline: 15 November 2025.
Author notification: July 2026.

This special issue of the Journal of Algebraic Combinatorics is dedicated to Paul Terwilliger in honor of his 70^th birthday and in recognition of his many significant contributions to mathematical research. Professor Terwilliger’s exceptional body of work has touched many areas, including distance-regular graphs, association schemes, Leonard systems, tridiagonal pairs, and the q-Onsager algebra and its relationship to mathematical physics, among others.  

This special issue seeks high-quality papers that intersect with areas of Professor Terwilliger’s work, with an emphasis on combinatorics.  Papers on research that will be presented at the Combinatorics around the q-Onsager Algebra Conference held June 23-28, 2025 in Slovenia are especially encouraged. The submissions will be fully refereed according to the standards of the journal. 

The guest editors for this special issue are Sarah Bockting-Conrad (DePaul University), John Caughman (Portland State University), Tatsuro Ito (Anhui University), Jack Koolen (University of Science and Technology of China), Luc Vinet (University of Montreal) and Pascal Baseilhac (Institut Denis-Poisson CNRS/UMR 7013 - Universit ́e de Tours - Universite d’Orleans Parc de Grammont).

Authors should submit their work to the Journal of Algebraic Combinatorics via the online platform: https://www.editorialmanager.com/jaco/default.aspx

Submission deadline: December 31, 2025

Special Issue of the Journal of Algebraic Combinatorics in Honor of the 65th Birthday of Professor Vyjayanthi Chari

Overview 

This special issue of the Journal of Algebraic Combinatorics is dedicated to Professor Vyjayanthi Chari in recognition of her research contributions as well as her extensive service to the mathematical community. Professor Chari's work has had a tremendous influence on the research in representation theory and related fields. The special issue is intended to be a collection of papers reflecting the intersections of the mathematics of Professor Chari and the areas of interest of the Journal of Algebraic Combinatorics. We are soliciting submissions reporting on current research in the appropriate areas. Authors who are interested to submit a survey article are kindly asked to contact the guest editors in advance. Articles on areas in which progress has been reported at the Conference "Algebraic and Combinatorial Methods in Representation Theory, held during 13-24 November 2023 at ICTS, Bengaluru, India" are most appropriate. All papers will be strictly refereed according to the standards of the Journal of Algebraic Combinatorics. 

List of Possible Topics 

Researchers are invited to submit papers broadly related to combinatorial representation theory.

Guest editors: 

Jacob Greenstein (UC Riverside, USA) - jacobg@ucr.edu

Peter Littelmann (Univ. Koeln, Germany) - plittelm@uni-koeln.de 

Apoorva Khare (IISc Bangalore, India) - khare@iisc.ac.in

R. Venkatesh (IISc Bangalore, India) - rvenkat@iisc.ac.in

S. Viswanath (IMSc Chennai, India) - svis@imsc.res.in

Papers should be submitted at the Journal of Algebraic Combinatorics website: https://www2.cloud.editorialmanager.com/jaco/default2.aspx 

Select Article Type: Manuscript Upload your files When the system asks, "Does this manuscript belong to a special issue?" reply: Yes, then choose the option "V. Chari 65th" Complete the remainder of the submission process as required. 

Paper submission deadline: December 31, 2024

The Journal of Algebraic Combinatorics (JACO) pays homage to Professor Anatoly Moiseevich Vershik, who passed away on February 14, 2024, at the age of 90 years. He was a prolific mathematician who worked in many area of mathematics, such as Group Theory, Combinatorics, Topological Groups, Lie Groups, Measure and Integration, Dynamical Systems, Ergodic Theory, Probability theory and stochastric processes, Functional Analysis and so forth. He made major contributions to central areas of mathematics and is a highly cited mathematician.

The present Journal of Algebraic Combinatorics (JACO) special issue aims to collect top quality submissions in topics related to Prof. Vershik's work, with an emphasis on combinatorics aspects. Submissions will be handled via the JACO online platform at https://link.springer.com/journal/10801, or by e-mail to the guest editors and will be thoroughly refereed. We cordially invite all interested parties to submit their work to the special issue, in celebration of Prof. Vershik's career, legacy and mathematical contributions.

Important Dates

1. Submission deadline: August 03, 2024

2. Notification deadline: December 03, 2024

3. Publication date: January 2025