DISCRETE MAXIMAL PARABOLIC REGULARITY FOR GALERKIN FINITE ELEMENT METHODS FOR NONAUTONOMOUS PARABOLIC PROBLEMS

被引:8
|
作者
Leykekhman, Dmitriy [1 ]
Vexler, Boris [2 ]
机构
[1] Univ Connecticut, Dept Math, Storrs, CT 06269 USA
[2] Tech Univ Munich, Chair Optimal Control, Ctr Math Sci, D-85748 Garching, Germany
基金
美国国家科学基金会;
关键词
parabolic problems; maximal parabolic regularity; discrete maximal parabolic regularity; finite elements; discontinuous Galerkin methods; optimal error estimates; time-dependent coefficients; nonautonomous problems; TIME-DEPENDENT COEFFICIENTS; POINTWISE STATE CONSTRAINTS; CRANK-NICOLSON SCHEME; SMOOTHING PROPERTY; EQUATIONS; DISCRETIZATIONS; STABILITY; OPERATORS; SPACES;
D O I
10.1137/17M114100X
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The main goal of the paper is to establish time semidiscrete and space-time fully discrete maximal parabolic regularity for the lowest order time discontinuous Galerkin solution of linear parabolic equations with time-dependent coefficients. Such estimates have many applications. As one of the applications we establish best approximations type results with respect to the L-P(O, T; L-2(Omega)) norm for 1 <= p <= infinity.
引用
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页码:2178 / 2202
页数:25
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