4 citations · 4 across the 2 of their papers we have counts for
2 papers
math.CA2019
Oscillation properties of one boundary problem of fourth order with a spectral parameter in the boundary conditions
A. A. Vladimirov, E. S. Karulina
For one boundary problem of fourth order with a spectral parameter in the boundary condition we prove the simplicity of the spectrum and the oscillation properties of the system of…
math.CA2012★ 4 cited
The Sturm--Liouville problem with singular potential and the extrema of the first eigenvalue
E. S. Karulina, A. A. Vladimirov
On the basis of the theory of Sturm--Liouville problem with distribution coefficients we get the infima and suprema of the first eigenvalue of the problem $-y" + (q-λ) y=0, y'(0) -…