Highly Efficient Calculation Schemes of Finite-Element Filter Approach for the Eigenvalue Problem of Electric Field

Table 3

The results on L-shape domain by Scheme 2 for eigenvalue problem of electric field (𝛾=0.95): Set ℎ₁=𝐻=√2/8,ℎ₂=ℎ₁/4,ℎ_𝑖=ℎ_𝑖−1/2,𝑖=3,4,….

𝑙	𝜆^ℎ𝑙1	𝜆^ℎ𝑙2	𝜆^ℎ𝑙3	𝜆^ℎ𝑙5
2	1.442172956105	3.534742382807	9.869624451909	11.390286991090
3	1.424394098212	3.534137592831	9.869605664957	11.389497235196
4	1.437944305790	3.534047685310	9.869604480377	11.389493626284
5	1.473860172568	3.534033892611	9.869604406055	11.389480149393