Tiberiu Popoviciu Institute of Numerical Analysis

Romanian Academy

Since 1951

Founded in 1951 by T. Popoviciu

Research fields

Numerical Analysis & Modeling

Most notable

B-splines (invent. nonunif. grids)

Notable results

  • Papers in journals: J. Math. Pures Appl., Math. Comp., J. Comp. Phys., Adv. Water Res.,…
  • Books in: Springer, Birkhauser,…
  • Papers: Survey, JCR/ISI,…
  • Honors,…

Works, categorized -as posts- by

chevron_right(soon)

Birkhäuser/Springer

Springer

Springer

Lambert

arrow_down

Supercomputing experience

Cooperation agreements with Forschungszentrum Jülich (Germany), allowing numerical applications on supercomputers.

chevron_rightSupercomputing
arrow_down

Journal of Numerical Analysis and Approximation Theory

A peer-reviewed journal since 1972.

chevron_rightJ. Numer. Anal. Approx. Theory
arrow_down

acad. Tiberiu Popoviciu

 

One of the greatest Romanian mathematicians.

One of the Romanian computer pioneers.

Appears in the select History of Approximation Theory (Technion Univ., Israel).

starMore
chevron_down
MARICA Computer (1959), Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy
DACICC-1 (1963) electronic computer, in complete configuration
The DACICC-200 computer (1968), installed at Bucharest (1969), operated by engineers Petre Soreanu, Mircea Bocu and Gheorghe Farkas

Some of the first electronic computers in Romania built here:

  • MARICA, ’59, relay computer;
  • DACICC-1, ’63, 3rd in Romania, but 1st with transistors & RAM memory;
  • DACICC-200, ’68, most powerful Romanian computer; 1st with OS & compiler.
arrow_rightInstitute History
arrow_down

The first ionic implantation device from Romania

In the seventies was constructed a ionic implantation device.

It was subsequently improved at ITC, in 1976.

(to be completed)

null

Move the cursor to/tap each person’s face to find his/her name.

arrow_down
arrow_rightCluj team on NAAT

The tree of the PhD descendants of T. Popoviciu, G. Călugăreanu and D.V. Ionescu.

LinkedIn
YouTube

Announcements

Publications

Methods of Newton and Newton-Krylov type

Emil Cătinaş
Books, Chebyshev method, Convergence orders, divided differences, eigenvalue/eigenvector problems, history, inexact/perturbed iterations, iterative methods, Krylov methods, linear systems in Rn, local convergence, Newton method, nonlinear systems in Rn, Numerical Analysis, secant/chord method, successive approximations
Book summaryLocal convergence results on Newton-type methods for nonlinear systems of equations are studied. Solving of large linear systems by Krylov methods (GMRES, GMBACK, MINPERT) are also dealt with, as…
Read More

Numerical benchmark study for flow in highly heterogeneous aquifers

Cristian Alecsa
(original), Convergence orders, finite differences (FD), Finite element (FEM), global random walk, ISI/JCR, Monte Carlo simulations, Numerical Analysis, Numerical Modeling, paper, PDEs, spectral methods
AbstractThis article presents numerical investigations on accuracy and convergence properties of several numerical approaches for simulating steady state flows in heterogeneous aquifers. Finite difference, finite element, discontinuous Galerkin, spectral, and…
Read More
Menu