On the Eigenvalues and Eigenfunctions of the Sturm-Liouville Operator with the Barrier Potential
SARWAR Qanitah, HUANG Zhen-you, ZAHID Abdul Hannan, XU Xin-Jian
Chinese Quarterly Journal of Mathematics . 2023, (1): 50 -61 .  DOI: 10.13371/j.cnki.chin.q.j.m.2023.01.004