A Special Interest Group is a set of people with an interest in a particular area of mathematics.
Systems and Control Theory is an active area within the Institute with many conferences and the publication of the IMA Journal of Mathematical Control and Information. The IMA Systems and Control Theory Group aims to improve the visibility of the field, contribute to its development, and promote general interest in the area.
Computational Science and Engineering Group
The University of Greenwich runs the Computational Science and Engineering Group for the IMA. This group also has a publication which you can sign up for via their website.