?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adissertation&rft.aufirst=Xiaoshu&rft.au=Sun%2C+Xiaoshu&rft.aulast=Sun&rft.date=28+January+2024&rft.title=The+numerical+computation+of+Casimir+energies+and+related+spectral+problems&rft.tpages=138&rft.inst=UCL+(University+College+London)&rft.degree=Doctoral