Supported by the National Nature Science Foundation of China(11361039);the innovation fund of Inner Mongolia University of Science and Technology(2015QDL19)
Supported by the National Natural Science Foundation of China(No.11361039 and 11161030);the Natural Science Foundation of Inner Mongolia Province,China(No.2013MS0116)
Based on some recent results for interlacing eigenvalue intervals from 1-parameter families of se- quences of eigenvalue inequalities, a new method is given to solving the index problem for Sturm-Liouville eigenvalues...