C*-Algebras of Singular Integral operators on the line realted to singular Sturm-Liouville problems.
Chord Techniques and Newton's Method for Discrete Bifurcation Problems.
Coefficients de réflexion pour les potentiels de Hardy
Compactness of the inverse of the minimal operator for a class of ordinary differential expressions.
Connected branches of asymptotically equivalent solutions to non-linear eigenvalue problems
We prove an existence theorem for connected branches of solutions to nonlinear operator equations in Banach spaces. This abstract result is applied to the asymptotically equivalent solutions to nonlinear ordinary differential equations.
Continuous Branches of Positive Solutions for a Class of Nonlinear Second-Order Differential Equations.
Correction of Finite Element Estimates for Sturm-Liouville Eigenvalues.
Correction of Numerov's Eigenvalue Estimates.