Archives: Sessions - ACA 2026, Prishtina, Kosovo

Algorithmic and Combinatorial Group Theory

aca-admin — Sat, 14 Mar 2026 16:33:48 +0000

Algorithmic and combinatorial group theory explores groups through presentations by generators and relations, focusing on the algorithmic questions that emerge from these descriptions.

Fundamental challenges, such as the word, isomorphism, and conjugacy problems, motivate much of the research in this field and have led to the development of diverse combinatorial and geometric techniques. These ideas play a central role in the study of Artin and braid groups, naturally intersecting with geometric group theory, low-dimensional topology, and computational algebra.

This session will focus on:
• Algorithmic questions in Artin groups, braid groups, and related families;
• Combinatorial and geometric methods for studying group presentations;
• Structural properties of groups exhibiting forms of non-positive or negative curvature;
• Interactions between group theory, topology, and computation.

The proposed speakers conduct research in several closely related directions. Maria Cumplido has developed combinatorial approaches to braid and Artin groups, often utilizing geometric properties derived from their actions on complexes. Bruno Cisneros de la Cruz investigates problems in geometric and combinatorial group theory with significant connections to topology. Davide Spriano examines groups from a geometric perspective, particularly those with negative curvature and the resulting algorithmic questions. Recent work by Oli Jones and Giovanni Sartori explores structural decompositions and rigidity phenomena in Artin groups, specifically as they relate to the isomorphism problem. Federica Gavazzi has researched the structural aspects of Artin-type groups, including virtual Artin groups and related constructions.

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Coding Theory and Its Applications

aca-admin — Wed, 18 Feb 2026 22:15:43 +0000

Abstract:
This special session focuses on current directions in coding theory
and its applications, bringing together algebraic, combinatorial,
and computational perspectives. Topics include structured code
families such as algebraic geometry codes, rank-metric codes,
additive codes, and codes with rich automorphism groups, as well
as parameter determination and bounds (including
Delsarte/Levenshtein-type approaches and linear programming).

For ACA 2026, the session also considers themes related to quantum
error-correcting codes and their applications, including
connections with design theory (e.g., combinatorial designs
arising from code structures, incidence structures, and symmetry).
It also considers the covering radius and its generalizations,
exact and computational results for special families, and related
optimization and bounding techniques.

The session aims to foster interaction among researchers working
on theoretical developments, computational evidence, and
application-driven problems in classical and quantum coding theory.

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Computer Algebra in Education

aca-admin — Fri, 21 Nov 2025 02:20:07 +0000

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Propose a session

aca-admin — Mon, 03 Nov 2025 18:18:36 +0000

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General Session

aca-admin — Tue, 16 Sep 2025 22:19:44 +0000

In order to propose a talk in this session, please email the general chairs (Q. Gashi and I. Kotsireas).

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Computer Algebra Applications in the Life Sciences

aca-admin — Tue, 12 Aug 2025 08:53:33 +0000

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