中文摘要：

用全实加关联方法计算了类锂Ti^19离子1s^23d-1s^2nf（4≤n≤9）的跃迁能、振子强度及1s^2nf（n≤9）态的精细结构劈裂．依据单通道量子亏损理论，确定了该Rydberg系列的量子数亏损，用这些作为能量的缓变函数的量子亏损。可以实现对任意高激发态（n≥10）的能量的可靠预言．将这些分立态振子强度与单通道量子亏损理论相结合，得到在电离阈附近束缚态间的偶极跃迁振子强度以及束缚态一连续态跃迁的振子强度密度，从而实现了Ti^19＋离子量子跃迁特性的全能域理论预言。

英文摘要：

The transition energies and oscillator strengths of 1s^23d- 1s^2 nf（4≤n≤9） for lithium-like Ti^19＋ ion are calculated by using the full-core plus correlation （FCPC） method. The fine structure splittings of 1s^2 nf（ n≤9） states are also evaluated. The quantum defects of this Rydberg series are determined according to the single-channel quantum defect theory. The energies of any highly excited states with n≥10 for this seties can be reliably predicted using the quantum defects which are function of energy. Combining the quantum defect theory with the discrete oscillator strengths, the discrete oscillator strengths for the transitions from the given initial state to highly excited states （ n ≥10） and the oscillator strengths density corresponding to the bound-free transitions are obtained.