摘要
New mixed finite element methods are presented for the second order ellip tic problem :-Δu = f in Ω , with u ∈ H01(Ω).These new methods are coercive, and the resulting linear systems are positively definite, with condition number O(h-2).Moreover, they allow the use of much more finite elements.
New mixed finite element methods are presented for the second order ellip tic problem :-Δu = f in Ω , with u ∈ H01(Ω).These new methods are coercive, and the resulting linear systems are positively definite, with condition number O(h-2).Moreover, they allow the use of much more finite elements.
出处
《计算数学》
CSCD
北大核心
2001年第4期417-428,共12页
Mathematica Numerica Sinica
