Meet a Mathematical Family

“He asked me this question because I'm his sister and he loves me.”  Mathematics can often be seen as a solitary endeavour, but as this quote from one of our latest podcast guests show, that is far from the truth. In this episode, we learn how a new proof has developed from one young mathematician talking to his sister – and then collaborating with their father and close family friend. We spoke to Roman Sauer and Uri Bader – and Uri’s two children Saar and Shaked – after they had attended a residential research programme at the Isaac Newton Institute where they had worked together and proved a rigidity result around symmetries and group theory. We spoke to all four of them to understand the result, what it was like working together, and how they each got into maths.  Please note, this episode includes more technical mathematical descriptions than is standard for our podcasts so you may want a strong cup of coffee before you dive in! To find out more about the maths discussed in this episode, you might like:  An introduction to group theory A very short overview of symmetry and groups A podcast on group theory Maths on the Move, is the podcast from plus.maths.org. We speak to researchers from the frontiers of mathematical science so you can connect with the maths that shapes and explains our world. Hosted by Plus editors Rachel Thomas and Marianne Freiberger. This podcast forms part of our collaboration with the Isaac Newton Institute for Mathematical Sciences (INI) – you can find all the content from the collaboration here. The INI is an international research centre and our neighbour here on the University of Cambridge's maths campus. It attracts leading mathematical scientists from all over the world, and is open to all. Visit www.newton.ac.uk to find out more.