On the different types of global and local conservation laws for partial differential equations in three spatial dimensions: review and recent developments

SC Anco, AF Cheviakov - International Journal of Non-Linear Mechanics, 2020 - Elsevier
For systems of partial differential equations in three spatial dimensions, dynamical
conservation laws holding on volumes, surfaces, and curves, as well as topological …

An overview of differential models for corrosion of cultural heritage artefacts

G Frasca-Caccia, C Valentino, F Colace… - … Modelling of Natural …, 2023 - mmnp-journal.org
New technologies play a central role in damage prevention of artistic and cultural heritage.
The literature is ourishing of mathematical models that describe the process of corrosion due …

Invariant conservation law-preserving discretizations of linear and nonlinear wave equations

AF Cheviakov, VA Dorodnitsyn… - Journal of Mathematical …, 2020 - pubs.aip.org
Symmetry-and conservation law-preserving finite difference discretizations are obtained for
linear and nonlinear one-dimensional wave equations on five-and nine-point stencils using …

Lie symmetries of two-dimensional shallow water equations with variable bottom topography

A Bihlo, N Poltavets, RO Popovych - Chaos: An Interdisciplinary …, 2020 - pubs.aip.org
We carry out the group classification of the class of two-dimensional shallow water
equations with variable bottom topography using an optimized version of the method of …

Conservative methods for dynamical systems

ATS Wan, A Bihlo, JC Nave - SIAM Journal on Numerical Analysis, 2017 - SIAM
We show a novel systematic way to construct conservative finite difference schemes for
quasilinear first-order systems of ordinary differential equations with conserved quantities. In …

Numerical conservation laws of time fractional diffusion PDEs

A Cardone, G Frasca-Caccia - Fractional Calculus and Applied Analysis, 2022 - Springer
This paper introduces sufficient conditions to determine conservation laws of diffusion
equations of arbitrary fractional order in time. Numerical methods that satisfy discrete …

Simple bespoke preservation of two conservation laws

G Frasca-Caccia, PE Hydon - IMA Journal of Numerical …, 2020 - academic.oup.com
Conservation laws are among the most fundamental geometric properties of a partial
differential equation (PDE), but few known finite difference methods preserve more than one …

Inverse problem on conservation laws

RO Popovych, A Bihlo - Physica D: Nonlinear Phenomena, 2020 - Elsevier
The explicit formulation of the general inverse problem on conservation laws is presented for
the first time. Within this problem, one aims to derive the general form of systems of …

Lie point symmetries of difference equations for the nonlinear sine-Gordon equation

O Yildirim, S Caglak - Physica Scripta, 2019 - iopscience.iop.org
A procedure for obtaining the Lie point symmetries of a difference scheme for a nonlinear
sine-Gordan equation is presented. The invariant discretization of the first order of accuracy …

On the arbitrarily long-term stability of conservative methods

ATS Wan, JC Nave - SIAM Journal on Numerical Analysis, 2018 - SIAM
We show the arbitrarily long-term stability of conservative methods for autonomous ODEs.
Given a system of autonomous ODEs with conserved quantities, if the preimage of the …