2025
= 2025
{scope}
{title2=A15090H1}
Source PDF: https://mmathphys.physics.ox.ac.uk/sites/g/files/vzsiac2991/files/mmathphys/documents/media/a15090h1.pdf
These solutions cover every part of the held paper. Numbered headings identify the corresponding source parts; the question statements are not reproduced.