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Zuliang Lu, Shaohong Du, Yuelong Tang. New a posteriori error estimates of mixed finite element methods for quadratic optimal control problems governed by semilinear parabolic equations with integral constraint, Boundary Value Problems£¬2013, 230, pp. 1-21 (SCIÆÚ¿¯£¬IDS£ºV38KV)
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±êÌâ: New a posteriori error estimates of mixed finite element methods for quadratic optimal control problems governed by semilinear parabolic equations with integral constraint
×÷Õß: Lu, ZL (Lu, Zuliang); Du, SH (Du, Shaohong); Tang, YL (Tang, Yuelong)
À´Ô´³ö°æÎï: BOUNDARY VALUE PROBLEMS  ÎÄÏ׺Å: 230  DOI: 10.1186/1687-2770-2013-230  ³ö°æÄê: NOV 8 2013  
ÕªÒª: In this paper, we investigate new L-infinity(L-2) and L-2(L-2)-posteriori error estimates of mixed finite element solutions for quadratic optimal control problems governed by semilinear parabolic equations. The state and the co-state are discretized by the order one Raviart-Thomas mixed finite element spaces and the control is approximated by piecewise constant functions. We derive a posteriori error estimates in L-infinity(J; L-2(Omega))-norm and L-2(J; L-2(Omega))-norm for both the state and the control approximation. Such estimates, which are apparently not available in the literature, are an important step towards developing reliable adaptive mixed finite element approximation schemes for the optimal control problem.
Èë²ØºÅ: WOS:000209343200001
ISSN: 1687-2770
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