Error Estimates for the Nearly Singular Momentum-Space Bound-State Equations
Keyword(s):
We present errors of quadrature rules for the nearly singular integrals in the momentum-space bound-state equations and give the critical value of the nearly singular parameter. We give error estimates for the expansion method, the Nyström method, and the spectral method which arise from the near singularities in the momentum-space bound-state equations. We show the relations amongst the near singularities, the odd phenomena in the eigenfunctions, and the unreliability of the numerical solutions.
2019 ◽
Vol 24
(11)
◽
pp. 3410-3417
◽
1989 ◽
Vol 30
(5)
◽
pp. 1060-1072
◽
2020 ◽
Vol 46
(3)
◽
Keyword(s):
Keyword(s):
2016 ◽
Vol 65
◽
pp. 39-46
◽