The superconvergent patch recovery (SPR) and adaptive finite element refinement
Computer Methods in Applied Mechanics and Engineering - Special issue on reliability in computational mechanics
Edge Residuals Dominate A Posteriori Error Estimates for Low Order Finite Element Methods
SIAM Journal on Numerical Analysis
Finite Element Method for Elliptic Problems
Finite Element Method for Elliptic Problems
Adaptive Finite Element Methods for Optimal Control of Partial Differential Equations: Basic Concept
SIAM Journal on Control and Optimization
A Posteriori Error Estimates for Convex Boundary Control Problems
SIAM Journal on Numerical Analysis
A Posteriori Error Estimates for Control Problems Governed by Stokes Equations
SIAM Journal on Numerical Analysis
Adaptive Finite Element Approximation for Distributed Elliptic Optimal Control Problems
SIAM Journal on Control and Optimization
Superconvergence for Optimal Control Problems Governed by Semi-linear Elliptic Equations
Journal of Scientific Computing
SIAM Journal on Numerical Analysis
A posteriori error analysis for discontinuous finite volume methods of elliptic interface problems
Journal of Computational and Applied Mathematics
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In this paper, we derive a posteriori error estimates of recovery type, and present the superconvergence analysis for the finite element approximation of distributed convex optimal control problems. We provide a posteriori error estimates of recovery type for both the control and the state approximation, which are generally equivalent. Under some stronger assumptions, they are further shown to be asymptotically exact. Such estimates, which are apparently not available in the literature, can be used to construct adaptive finite element approximation schemes and as a reliability bound for the control problems. Numerical results demonstrating our theoretical results are also presented in this paper.