3,087 research outputs found
Spaceability in Banach and quasi-Banach sequence spaces
Let be a Banach space. We prove that, for a large class of Banach or
quasi-Banach spaces of -valued sequences, the sets , where is any subset of , and
contain closed infinite-dimensional subspaces of (if
non-empty, of course). This result is applied in several particular cases and
it is also shown that the same technique can be used to improve a result on the
existence of spaces formed by norm-attaining linear operators.Comment: 9 page
Induced mass in N=2 super Yang-Mills theories
The masses of the matter fields of N=2 Super-Yang-Mills theories can be
defined as parameters of deformed supersymmetry transformations. The
formulation used involves central charges for the matter fields. The explicit
form of the deformed supersymmetry transformations and of the invariant
Lagrangian in presence of the gauge supermultiplet are constructed. This works
generalizes a former one, due to the same authors, which presented the free
matter case.Comment: 15 pages, Late
- β¦