Natalia Kopteva

Orcid: 0000-0001-7477-6926

According to our database1, Natalia Kopteva authored at least 43 papers between 2001 and 2025.

Collaborative distances:
  • Dijkstra number2 of five.
  • Erdős number3 of five.

Timeline

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Bibliography

2025
Error analysis of an L2-type method on graded meshes for semilinear subdiffusion equations.
Appl. Math. Lett., 2025

2024
On the Solution Existence for Collocation Discretizations of Time-Fractional Subdiffusion Equations.
J. Sci. Comput., September, 2024

Time stepping adaptation for subdiffusion problems with non-smooth right-hand sides.
CoRR, 2024

2023
Pointwise A Posteriori Error Estimates for Discontinuous Galerkin Methods for Singularly Perturbed Reaction-Diffusion Equations.
SIAM J. Numer. Anal., August, 2023

Pointwise-in-time a posteriori error control for higher-order discretizations of time-fractional parabolic equations.
J. Comput. Appl. Math., August, 2023

2022
A Posteriori Error Analysis for Variable-Coefficient Multiterm Time-Fractional Subdiffusion Equations.
J. Sci. Comput., 2022

Green's function estimates for a 2d singularly perturbed convection-diffusion problem: extended analysis.
CoRR, 2022

A review of maximum-norm a posteriori error bounds for time-semidiscretisations of parabolic equations.
CoRR, 2022

Maximum norm a posteriori error estimates for convection-diffusion problems.
CoRR, 2022

Maximum principle for time-fractional parabolic equations with a reaction coefficient of arbitrary sign.
Appl. Math. Lett., 2022

Pointwise-in-time a posteriori error control for time-fractional parabolic equations.
Appl. Math. Lett., 2022

2021
Error analysis of an L2-type method on graded meshes for a fractional-order parabolic problem.
Math. Comput., 2021

2020
Error Analysis for a Fractional-Derivative Parabolic Problem on Quasi-Graded Meshes using Barrier Functions.
SIAM J. Numer. Anal., 2020

Error Analysis for Time-Fractional Semilinear Parabolic Equations Using Upper and Lower Solutions.
SIAM J. Numer. Anal., 2020

Lower a posteriori error estimates on anisotropic meshes.
Numerische Mathematik, 2020

How accurate are finite elements on anisotropic triangulations in the maximum norm?
J. Comput. Appl. Math., 2020

2019
Error analysis of the L1 method on graded and uniform meshes for a fractional-derivative problem in two and three dimensions.
Math. Comput., 2019

Logarithm cannot be removed in maximum norm error estimates for linear finite elements in 3D.
Math. Comput., 2019

2018
A two-dimensional slice through the parameter space of two-generator Kleinian groups.
Int. J. Algebra Comput., 2018

2017
Energy-norm a posteriori error estimates for singularly perturbed reaction-diffusion problems on anisotropic meshes.
Numerische Mathematik, 2017

Analysis and numerical solution of a Riemann-Liouville fractional derivative two-point boundary value problem.
Adv. Comput. Math., 2017

Improved maximum-norm a posteriori error estimates for linear and semilinear parabolic equations.
Adv. Comput. Math., 2017

2016
Maximum-norm a posteriori error estimates for singularly perturbed elliptic reaction-diffusion problems.
Numerische Mathematik, 2016

2015
Maximum-Norm A Posteriori Error Estimates for Singularly Perturbed Reaction-Diffusion Problems on Anisotropic Meshes.
SIAM J. Numer. Anal., 2015

2014
Linear finite elements may be only first-order pointwise accurate on anisotropic triangulations.
Math. Comput., 2014

2013
Maximum Norm A Posteriori Error Estimation for Parabolic Problems Using Elliptic Reconstructions.
SIAM J. Numer. Anal., 2013

2012
A second-order overlapping Schwarz method for a 2D singularly perturbed semilinear reaction-diffusion problem.
Math. Comput., 2012

Maximum Norm a Posteriori Error Estimation For a Time-dependent Reaction-diffusion Problem.
Comput. Methods Appl. Math., 2012

Numerical Study of Maximum Norm a Posteriori Error Estimates for Singularly Perturbed Parabolic Problems.
Proceedings of the Numerical Analysis and Its Applications - 5th International Conference, 2012

2011
Stabilised approximation of interior-layer solutions of a singularly perturbed semilinear reaction-diffusion problem.
Numerische Mathematik, 2011

Maximum norm a posteriori error estimate for a 3d singularly perturbed semilinear reaction-diffusion problem.
Adv. Comput. Math., 2011

2008
Maximum Norm A Posteriori Error Estimate for a 2D Singularly Perturbed Semilinear Reaction-Diffusion Problem.
SIAM J. Numer. Anal., 2008

Pointwise approximation of corner singularities for a singularly perturbed reaction-diffusion equation in an <i>L</i>-shaped domain.
Math. Comput., 2008

Numerical Analysis of a 2d Singularly Perturbed Semilinear Reaction-Diffusion Problem.
Proceedings of the Numerical Analysis and Its Applications, 4th International Conference, 2008

2007
The Formation of River Channels.
SIAM J. Appl. Math., 2007

Maximum norm error analysis of a 2d singularly perturbed semilinear reaction-diffusion problem.
Math. Comput., 2007

2006
Numerical analysis of singularly perturbed nonlinear reaction-diffusion problems with multiple solutions.
Comput. Math. Appl., 2006

2005
Grid equidistribution for reaction-diffusion problems in one dimension.
Numer. Algorithms, 2005

All Discrete <i>RP</i> Groups Whose Generators have Real Traces.
Int. J. Algebra Comput., 2005

2003
Error Expansion for an Upwind Scheme Applied to a Two-Dimensional Convection-Diffusion Problem.
SIAM J. Numer. Anal., 2003

2001
A Robust Adaptive Method for a Quasi-Linear One-Dimensional Convection-Diffusion Problem.
SIAM J. Numer. Anal., 2001

Maximum Norm A Posteriori Error Estimates for a One-Dimensional Convection-Diffusion Problem.
SIAM J. Numer. Anal., 2001

Uniform Pointwise Convergence of Difference Schemes for Convection-Diffusion Problems on Layer-Adapted Meshes.
Computing, 2001


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