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Mathematical Problems in Engineering
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Mathematical Problems in Engineering
/
2012
/
Article
/
Fig 6
/
Research Article
New Preconditioners with Two Variable Relaxation Parameters for the Discretized Time-Harmonic Maxwell Equations in Mixed Form
Figure 6
The eigenvalue distribution of the preconditioned matrix
ℳ
−
1
𝑘
,
𝜂
,
𝜀
𝒜
with
𝑘
2
=
0
,
𝜂
=
0
.
0
1
and
𝑚
+
𝑛
=
9
6
1
.