Eigenvalue asymptotics for Sturm--Liouville operators with singular potentials

We derive eigenvalue asymptotics for Sturm–Liouville operators with singular complex-valued potentials from the space $W_2^{\text{al}-1}(0,1)$, $\text{al}\in [0,1]$, and Dirichlet or Neumann–Dirichlet boundary conditions. We also give application of the obtained results to the inverse spectral problem of recovering the potential from these two spectra.