Notes
Personal notes that have grown enough over time to see the light of day.
- Construction of dual spaces with respect to an isomorphism
This short note describes a construction related with extrapolated spaces/spaces of negative norm/Gelfand triples, in which one uses three spaces and one isomorphism to construct a new space and isomorphism. This new space identifies isometrically with the true dual of the intermediate space, and allows for a special extension of the relevant isomorphism.