Smooth paired wedges with bundle coefficients #
A smooth fibrewise bilinear pairing sends two smooth bundle-valued differential forms to a smooth form in its target bundle. The pairing may vary with the base point, and none of the value bundles needs a global trivialization or a norm on its individual fibres.
ContMDiffWithinAt.bundleWedgeWith_form gives the relative regularity statement, including
boundary and corner points. SmoothBundleForm.wedgeWith packages the smooth product as a
bilinear map. In bundle coordinates the product is the continuous trilinear paired wedge on
the model fibres, applied to the coordinates of the pairing and of the two forms.
The wedge normalization and bundle-valued construction follow John M. Lee,
Introduction to Smooth Manifolds, second edition, Chapter 14, and the paired-wedge design
of Yury Kudryashov's DeRhamCohomology.
In valid coefficient trivializations, coordinates of a bundle wedge are the paired wedge of the coordinates, with the pairing itself also expressed in coordinates.
A smooth bundle pairing takes two C^n bundle-valued forms to a C^n form within an
arbitrary set.
A C^n bundle pairing takes C^n bundle-valued forms to a C^n form on a set.
Pointwise regularity of a bundle wedge follows from regularity of both forms and pairing.
A C^n pairing preserves C^n bundle-valued forms.
The wedge induced by a smooth bundle pairing, as a bilinear map on smooth forms.
Instances For
The smooth bundle wedge has the existing rough bundle wedge as its underlying form.
Evaluation of the smooth bundle wedge on a tangent tuple.
The smooth bundle wedge of two one-forms is the alternating two-term pairing.