Compound operators constructed with binomial and Sheffer sequences
AbstractIn this note we consider a general compound approximation operator using binomial sequences and we give a representation for its…
Simulation of fluctuating interference pattern for light scattered on erythrocytes in suspension
AbstractAuthorsC.V.L. Pop I. Turcu C. Vamoș -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy KeywordsCite this paper as:C.V.L. Pop, I. Turcu, C.Vamoş, Simulation…
Numerical modeling of large scale transport of contaminate solutes in heterogeneous aquifers using a new particles method
AbstractAuthorsN. Suciu -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy C. Vamoș -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy H. Vereecken J.…
The simulation of large scale transport in groundwater. Technical issues
AbstractAuthorsC. Vamoș -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy N. Suciu -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy H. Hardelauf J. Vanderborght…
Effective diffusion in heterogeneous media
AbstractAuthorsC. Vamoș -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy N. Suciu -Tiberiu Popoviciu Institute of Numerical Analysis, Romanian Academy KeywordsCite this…
On the Scalar Measure of Non-Normality of Matrices – Dimension vs. Structure
AbstractThe aim of this paper is to analyze the relative importance of the dimension and the structure of the square matrices…
On some one-step implicit methods as dynamical systems
AbstractThe one-step implicit methods, the backward Euler being the most known, require the solution of a nonlinear equation at each…
Global random walk model of diffusion in random velocity fields
Abstract ? AuthorsN. Suciu C. Vamoş H. Vereecken J. Vanderborght H. Hardelauf Keywords? Cite this paper asN. Suciu, C. Vamoş,…
Generalized random walk algorithm for the numerical modeling of complex diffusion processes
AbstractA generalized form of the random walk algorithm to simulate diffusion processes is introduced. Unlike the usual approach, at a…
On approximating the inverse of a matrix
Abstract In this note we deal with two problems: the first regards the efficiency in approximating the inverse of a…
Publications
Diffusion in Random Fields. Applications to Transport in Groundwater
Book summaryA self-consistent theory of stochastic modeling of groundwater systems is presented. Mathematical theory is illustrated and complemented by numerical methods and simulation codes. doi: http://doi.org/10.1007/978-3-030-15081-5 book on publisher website…
Read More Methods of Newton and Newton-Krylov type
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 Solutions with a prescribed interval of positivity for differential systems with nonlocal conditions
AbstractBased on fixed point index, the paper develops a theory of existence, localization and multiplicity of solutions to first-order differential systems subject to linear nonlocal conditions. The main features concern…
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