Pattern dynamics of vegetation based on optimal control theory

LF Hou, L Li, L Chang, Z Wang, GQ Sun - Nonlinear Dynamics, 2025 - Springer
Vegetation pattern dynamics is a pivotal research domain in ecology, which can reveal the
impact of the non-uniform distribution of vegetation on ecosystem structure and function …

A review on sparse solutions in optimal control of partial differential equations

E Casas - SeMA Journal, 2017 - Springer
In this paper a review of the results on sparse controls for partial differential equations is
presented. There are two different approaches to the sparsity study of control problems. One …

Analysis of spatio-temporally sparse optimal control problems of semilinear parabolic equations

E Casas, R Herzog, G Wachsmuth - ESAIM: Control, Optimisation and …, 2017 - numdam.org
Optimal control problems with semilinear parabolic state equations are considered. The
objective features one out of three different terms promoting various spatio-temporal sparsity …

Optimal control of semilinear parabolic equations with non-smooth pointwise-integral control constraints in time-space

E Casas, K Kunisch - Applied Mathematics & Optimization, 2022 - Springer
This work concentrates on a class of optimal control problems for semilinear parabolic
equations subject to control constraint of the form‖ u (t)‖ L 1 (Ω)≤ γ for t∈(0, T). This limits …

Parabolic control problems in space-time measure spaces

E Casas, K Kunisch - ESAIM: Control, Optimisation and Calculus of …, 2016 - numdam.org
Optimal control problems in measure spaces governed by parabolic equations with are
considered. The controls appear as spatial measure in the initial condition and as space …

Discrete maximal parabolic regularity for Galerkin finite element methods

D Leykekhman, B Vexler - Numerische Mathematik, 2017 - Springer
The main goal of the paper is to establish time semidiscrete and space-time fully discrete
maximal parabolic regularity for the time discontinuous Galerkin solution of linear parabolic …

Optimal control of the undamped linear wave equation with measure valued controls

K Kunisch, P Trautmann, B Vexler - SIAM Journal on Control and Optimization, 2016 - SIAM
Measure valued optimal control problems governed by the linear wave equation are
analyzed. The space of vector measures M(\Omega_c,L^2(I)) is chosen as control space …

Finite element discretization and efficient numerical solution of elliptic and parabolic sparse control problems

K Pieper - 2015 - mediatum.ub.tum.de
This thesis is concerned with the numerical analysis of sparse control problems for elliptic
and parabolic state equations. A focus is set on controls which are measures in space …

On sparse optimal control for general linear systems

T Ikeda, K Kashima - IEEE Transactions on Automatic Control, 2018 - ieeexplore.ieee.org
In this paper, we investigate an L 0 optimization problem with constraints in a form of
Volterra integral equation and the L∞ norm. In particular, the equivalence theorem among …

Sparse initial data identification for parabolic PDE and its finite element approximations

E Casas, B Vexler, E Zuazua - 2015 - bird.bcamath.org
We address the problem of inverse source identication for parabolic equations from the
optimal control viewpoint employing measures of minimal norm as initial data. We adopt the …