Professor Doctor Engineer Gheorghe Farkas has passed away at the age 83

17 Jul 2017
With deep regret we announce that on July 13, 2017, Professor Dr. Eng. Gheorghe Farkas, honorary member of the Institute, has passed away.…

Publications

Spectral collocation solutions to second order singular Sturm-Liouville eigenproblems

December 10, 2020
Călin-Ioan Gheorghiu
(preprint), eigenvalue/eigenvector problems, Numerical Analysis, paper
AbstractWe comparatively use some classical spectral collocation methods as well as highly performing Chebfun algorithms in order to compute the eigenpairs of second order singular Sturm-Liouville problems with separated self-adjoint…
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Accurate spectral collocation computation of high order eigenvalues for singular Schrödinger equations

December 3, 2020
Călin-Ioan Gheorghiu
(preprint), eigenvalue/eigenvector problems, Numerical Analysis, paper
AbstractWe are concerned with the study of some classical spectral collocation methods as well as with the new software system Chebfun in computing high order eigenpairs of singular and regular…
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Accurate spectral collocation solutions to some Bratu’s type Boundary Value Problems

December 2, 2020
Călin-Ioan Gheorghiu
(preprint), eigenvalue/eigenvector problems, Numerical Analysis, paper
AbstractWe solve by Chebyshev spectral collocation some genuinely nonlinear Liouville-Bratu-Gelfand type, 1D and a 2D boundary value problems. The problems are formulated on the square domain [−1, 1] × [−1,…
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