Columbia subject headings:
Boundary value problems--Numerical solutions.
Differential equations, Elliptic--Numerical solutions.
Harvard subject headings:
Boundary value problems--Numerical solutions--Data processing.
Differential equations, Elliptic--Numerical solutions--Data processing.
Princeton subject headings:
Boundary value problems--Numerical solutions--Data processing.
Differential equations, Elliptic--Numerical solutions--Data processing.