Semi-explicit discretization schemes for weakly coupled elliptic-parabolic problems

R Altmann, R Maier, B Unger - Mathematics of Computation, 2021 - ams.org
We prove first-order convergence of the semi-explicit Euler scheme combined with a finite
element discretization in space for elliptic-parabolic problems which are weakly coupled …

Bulk–surface Lie splitting for parabolic problems with dynamic boundary conditions

R Altmann, B Kovács, C Zimmer - IMA Journal of Numerical …, 2023 - academic.oup.com
This paper studies bulk–surface splitting methods of first order for (semilinear) parabolic
partial differential equations with dynamic boundary conditions. The proposed Lie splitting …

[图书][B] Temporal discretization of constrained partial differential equations

C Zimmer - 2021 - search.proquest.com
This thesis is devoted to the application and analysis of time integration schemes for
differential-algebraic equations (DAEs) stated in (abstract) Banach spaces. The existence …

Adaptivity in model order reduction with proper orthogonal decomposition

C Gräßle - 2019 - ediss.sub.uni-hamburg.de
This thesis is concerned with the approximation of dynamical systems and the optimal
control thereof using model order reduction based on proper orthogonal decomposition …

Error analysis for Galerkin-BDF discretizations of DAEs with elliptic operator constraints

D Groh, C Tischendorf - Journal of Computational and Applied Mathematics, 2023 - Elsevier
We are interested in a convergent numerical discretization scheme for nonlinear differential
algebraic equations (DAEs) coupled with elliptic constraints. The dynamics of flow networks …

Continuous, semi-discrete, and fully discretised navier-stokes equations

R Altmann, J Heiland - … of differential-algebraic equations: examples and …, 2019 - Springer
Abstract The Navier-Stokes equations are commonly used to model and to simulate flow
phenomena. We introduce the basic equations and discuss the standard methods for the …

Operator differential-algebraic equations with noise arising in fluid dynamics

R Altmann, T Levajković, H Mena - Monatshefte für Mathematik, 2017 - Springer
We study linear semi-explicit stochastic operator differential algebraic equations (DAEs) for
which the constraint equation is given in an explicit form. In particular, this includes the …

A Coupled System of Differential-Algebraic Equation and Hyperbolic Partial Differential Equation: Analysis and Optimal Control

D Groh - 2024 - library.oapen.org
Coupled systems of differential-algebraic equations (DAEs) and partial differential equations
(PDEs) appear in various fields of applications such as electrical engineering, bio …

Indirect category data transfer learning algorithm using regularization discrimination

G Liu, X Li, W Liu - Big Data, 2023 - liebertpub.com
To deal with a large amount of redundant data in the indirect category database and
inefficient redundancy elimination of the existing methods, we proposed an indirect category …