Marcel de Jeu

Marcel de Jeu is an Associate Professor at the Mathematical Institute of Leiden University, specializing in analysis and dynamical systems. His research spans abstract representation theory, harmonic analysis, ordered vector spaces, and operator algebras.

Research Interests:

• Abstract representation theory and harmonic analysis in ordered contexts
• Ordered vector spaces and algebras
• Banach algebras and operator algebras

PhD Students Advised:

• Christian Svensson (2009)
• Marten Wortel (2012)
• Miek Messerschmidt (2013)
• Rui Xie (visiting, 2013–2014)
• Xingni Jiang (2018)
• Yang Deng (2021)
• Walt van Amstel (2024, University of Pretoria)
• Chun Ding (expected 2025, joint with Onno van Gaans)

Additional Appointments:

• Extraordinary Professor at the University of Pretoria (Pretoria, South Africa)

Editorial and Organizational Roles:

• Editor of Positivity journal
• Chairman of the steering committee for biyearly Positivity conferences