Research Article

Bernstein-Polynomials-Based Highly Accurate Methods for One-Dimensional Interface Problems

Table 2

Convergence analysis of Example 4.1 by Bernstein collocation method ( 𝛽 1 = 1 0 0 , 𝛽 2 = 1 0 ).

𝑁
Equidistant collocation pointsL-G-L collocation points
Cond 𝑢 𝑈 𝐿 2 𝑢 𝑈 𝐻 1 Cond 𝑢 𝑈 𝐿 2 𝑢 𝑈 𝐻 1

4 8 . 0 6 9 7 𝑒 + 0 0 2 3 . 2 7 3 9 𝑒 0 0 5 7 . 2 9 5 9 𝑒 0 0 5 9 . 7 9 4 3 𝑒 + 0 0 2 9 . 3 6 6 9 𝑒 0 0 6 3 . 5 5 9 1 𝑒 0 0 5
6 1 . 7 1 9 2 𝑒 + 0 0 3 1 . 0 2 5 4 𝑒 0 0 7 2 . 8 2 0 5 𝑒 0 0 7 2 . 6 6 3 1 𝑒 + 0 0 3 1 . 8 6 8 7 𝑒 0 0 8 7 . 6 8 0 0 𝑒 0 0 8
8 3 . 5 4 5 9 𝑒 + 0 0 3 2 . 7 0 0 4 𝑒 0 1 0 6 . 8 9 5 4 𝑒 0 1 0 5 . 9 3 4 0 𝑒 + 0 0 3 2 . 7 6 7 8 𝑒 0 1 1 9 . 5 4 9 4 𝑒 0 1 1
10 2 . 0 2 2 4 𝑒 + 0 0 4 6 . 0 0 1 3 𝑒 0 1 3 1 . 1 4 9 2 𝑒 0 1 2 1 . 1 2 5 8 𝑒 + 0 0 4 2 . 5 0 9 7 𝑒 0 1 4 7 . 5 2 1 1 𝑒 0 1 4
12 1 . 2 9 9 3 𝑒 + 0 0 5 8 . 5 7 0 4 𝑒 0 1 3 3 . 2 0 6 2 𝑒 0 1 2 2 . 0 8 5 2 𝑒 + 0 0 4 1 . 4 1 8 2 𝑒 0 1 5 3 . 3 3 0 8 𝑒 0 1 5