New Block Triangular Preconditioners for Saddle Point Linear Systems with Highly Singular (1,1) Blocks

Table 1

Values of n and m, and order of 𝒜₁.

ℎ	𝑛	𝑚	Order of𝒜1
1/16	480	256	736
1/24	1104	576	1680
1/32	1984	1024	3008