Jean-Baptiste Gramain

Jean-Baptiste Gramain is a Reader in the School of Natural and Computing Sciences at the University of Aberdeen. He is an active researcher in algebra and combinatorics, with a focus on representation theory of finite groups, symmetric and alternating groups, and the combinatorics of partitions.

Research Interests: His research lies at the intersection of algebra and combinatorics, particularly in the modular representation theory of symmetric and alternating groups. He investigates structural properties of characters, blocks, and basic sets, often using combinatorial tools such as partitions, hook lengths, and core partitions. His work extends to Hecke algebras, perfect isometries, and generalized blocks in finite groups of Lie type.

The recent publications show a consistent focus on algebraic combinatorics and representation theory, with recurring themes in character restriction, core partitions, and isometries between blocks. His work combines deep theoretical insights with precise combinatorial constructions, often in collaboration with leading researchers such as Olivier Brunat, Maria Chlouveraki, and Nicolas Jacon.

• Generalised hook lengths and Schur elements for Hecke algebras (2025, 2024)
• On unitriangular basic sets for symmetric and alternating groups (2023)
• Simultaneous core partitions with nontrivial common divisor (2021)
• Perfect Isometries in Complex Reflection Groups (2020)
• Perfect Isometries and Murnaghan-Nakayama Rules (2017)

Academic Service: He is the organizer of the Algebra Seminar at the Institute of Mathematics, University of Aberdeen, indicating active participation in the academic community.

Advising and Grants: While no specific students or grant information is mentioned in the provided text, his extensive publication record and seminar leadership suggest involvement in research supervision and potential grant-funded projects. His collaborations span multiple institutions and indicate an integrated research network in algebra and combinatorics.

Labs and Teams: He is part of the algebra research group within the School of Natural and Computing Sciences at the University of Aberdeen, contributing to the Institute of Mathematics. His collaborative publications reflect active engagement with international research teams in representation theory and algebraic combinatorics.