Hashimoglu, Ilyas2024-09-292024-09-2920151687-1847https://doi.org/10.1186/s13662-015-0675-4https://hdl.handle.net/20.500.14619/6547We study one-term operator L acting in the space H-1 = L-2([0,infinity); H) generated by the operator-differential expression L = -d/dx(P(x)d/dx) and the boundary condition y(0) = 0. We evaluate the asymptotic number of eigenvalues of the operator L under certain conditions.eninfo:eu-repo/semantics/openAccessoperator equationseigenvaluesHilbert spaceArticle10.1186/s13662-015-0675-42-s2.0-84945252226Q2WOS:000367899400001Q4