著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) "中村, 周",Topics on the essential self-adjointness for Klein-Gordon type operators on spacetimes (Spectral and Scattering Theory and Related Topics),数理解析研究所講究録,1880-2818,京都大学数理解析研究所,2023-06,2257,,89-97,https://cir.nii.ac.jp/crid/1050864324980151936,