分管 共有 契約權 財產權 債權物權化 準財產權 對人權 對世權 登記 公示 物權法定主義 民法第826-1條 Numerus clausus Covenant to use co-owned property Contractual rights Property rights Propertized contractual rights Quasi-property rights In personam rights In rem rights Registration Public notice Article 826-1 of the Taiwan Civil Code