Explicit sharp bounds for all nodes of Sturm-Liouville operators with potentials in $L^1$ balls

Jifeng Chu, Shuyuan Guo, Gang Meng +1

For the classical Sturm-Liouville operators, we prove the sharp bounds for all nodes of eigenfunctions by regarding these nodes as nonlinear functionals of potential $q\in L^1[0,1]…