Călin-Ioan Gheorghiu, Author at Tiberiu Popoviciu Institute of Numerical Analysis

Posts by Călin-Ioan Gheorghiu

Accurate spectral collocation computations of high order eigenvalues for singular Schrödinger equations-revisited

28 Apr at 10:06 am

AbstractIn this paper, we continue to solve as accurately as possible singular eigenvalues problems attached to the Schrödinger equation. We…

Accurate spectral collocation solutions to 2nd-order Sturm–Liouville problems

2 Mar at 8:41 am

AbstractThis work is about the use of some classical spectral collocation methods as well as with the new software system…

Accurate spectral collocation computation of high order eigenvalues for singular Schrödinger equations

20 Jan at 10:26 am

AbstractWe are concerned with the study of some classical spectral collocation methods, mainly Chebyshev and sinc as well as with…

Spectral collocation solutions to second order singular Sturm-Liouville eigenproblems

10 Dec 2020

AbstractWe comparatively use some classical spectral collocation methods as well as highly performing Chebfun algorithms in order to compute the…

Accurate spectral collocation solutions to some Bratu’s type Boundary Value Problems

2 Dec 2020

AbstractWe solve by Chebyshev spectral collocation some genuinely nonlinear Liouville-Bratu-Gelfand type, 1D and a 2D boundary value problems. The problems…

Spectral collocation based on quasi-classical orthogonal polynomials applied to solve a singular BVP from Hydrodynamics

15 Sep 2020

AbstractIt is well established that spectral collocation methods based on classical orthogonal polynomials, in spite of their high order accuracy,…

A Constructive Introduction to Finite Elements Method

1 Aug 2020

Book summarySummary of the book… Book coverKeywordskeyword1, Contents1.Variational formulations 1.1. A 1D model problem 1.2. A 2D model problem (lapace…

Finite Element Method and Applications

30 Jul 2020

Book summarySummary of the book… Book cover Contents clickableIntroduction by Acad. Caius Iacob Foreword Functional Analysis Itinerary 1.1. Vector spaces.…

Numerical Methods for Dynamical Systems

29 Jul 2020

Book summarySummary of the book… Book coverContentsCh. 1 Keywords? PDFpdf file Referencessee the expanding block below Cite this book as:C.I.…

Spectral Methods for Differential Problems

17 Jul 2020

Book summarySummary of the book… Book cover Contents clickableI First Part 1 Chebyshev polynomials 1.1 General properties 1.2 Fourier and…

Posts by Călin-Ioan Gheorghiu

Accurate spectral collocation computations of high order eigenvalues for singular Schrödinger equations-revisited

Accurate spectral collocation solutions to 2nd-order Sturm–Liouville problems

Accurate spectral collocation computation of high order eigenvalues for singular Schrödinger equations

Spectral collocation solutions to second order singular Sturm-Liouville eigenproblems

Accurate spectral collocation solutions to some Bratu’s type Boundary Value Problems

Spectral collocation based on quasi-classical orthogonal polynomials applied to solve a singular BVP from Hydrodynamics

A Constructive Introduction to Finite Elements Method

Finite Element Method and Applications

Numerical Methods for Dynamical Systems

Spectral Methods for Differential Problems

Publications

Global random walk solvers for fully coupled flow and transport in saturated/unsaturated porous media

Accurate spectral collocation computations of high order eigenvalues for singular Schrödinger equations-revisited

Accurate spectral collocation solutions to 2nd-order Sturm–Liouville problems

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Posts by Călin-Ioan Gheorghiu

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