If the indices are equal but the refinement differs then the following rules determine the order (the linear order of nodes is not based directly on the coordinates of each orthotope but on the hierarchical Morton index; see Section 4)
If the indices areequal but the refinement differs then the following rules determinethe order (the linear order of nodes is not based directly onthe coordinates of each orthotope but on the hierarchical Mortonindex; see Section 4)