SubSpace.h

Note

The documentation on this page was automatically extracted from the DOLFIN C++ code and may need to be edited or expanded.

class SubSpace

Parent class(es)

• FunctionSpace

This class represents a subspace (component) of a function space.

The subspace is specified by an array of indices. For example, the array [3, 0, 2] specifies subspace 2 of subspace 0 of subspace 3.

A typical example is the function space W = V x P for Stokes. Here, V = W[0] is the subspace for the velocity component and P = W[1] is the subspace for the pressure component. Furthermore, W[0][0] = V[0] is the first component of the velocity space etc.

SubSpace(const FunctionSpace& V, std::size_t component)

Create subspace for given component (one level)

SubSpace(const FunctionSpace& V, std::size_t component, std::size_t sub_component)

Create subspace for given component (two levels)

SubSpace(const FunctionSpace& V, const std::vector<std::size_t>& component)

Create subspace for given component (n levels)