Develop
Some features in this megre request
- Using dune-functions GlobalBasis
- Assembling loops over elements first, then over nodes in basis-tree
- Operators can be associated to nodes in basis-tree
- Scalar and Vector operators
- DOFVectors are global coefficient vectors (for flat indices in the globalBasis)
- Various operators implemented for zot, fot, sot
Issues:
- not all expressions are available, e.g. no gradientOf
- not block structure in the matrices any more. This needs an extension in the problem-traits generator and an automatic generation of SystemVector and SystemMatrix data-structures. Maybe extend only for one-level blocks