What field will be listed on my PhD certificate in the UK?

[SchroedingersLion]

Greetings,

so I just got a position at a pretty good CDT in the UK, focussed on "mathematical modelling and computation". Participating students and supervisors come from pure and applied mathematics, but also theoretical physics, chemistry and so on. The focus of the first year of courses and also of the following thesis lies mostly on applied mathematics. The thesis will be written in in one of the departments of the participating supervisors.

Is the field of study typically included in the PhD certificate (in the UK)? Or only the thesis title? I was just wondering wether I would 'officially' get a PhD in "mathematical modelling and computation" or, depending on my thesis department, "mathematics" or "physics".
Because from my point of view, "mathematics" or "physics" sounds better from an employer's perspective, as they know exactly what's it about, wheras a long title like "mathematical modelling and computation" might sound strange to them.
Maybe I am overthinking this.

 

[Choppy]

I think that's something that's going to be institution- and program-specific, so this would be a question that would be best answered from within your department.