Consequently, we can suggest that the presence of the electric field changes the background of D-branes from flat to supergravity background (where the string coupling is strong).
In the context of time dependence in string theory from the effective D-brane action, we expect that the hyperplanes can fluctuate in shape and position as dynamical objects.
We showed in section 2 that the semi-infinite fuzzy funnel is a minimum energy configuration by imposing singular boundary conditions that have interesting physical interpretation in terms of D-brane geometries.
Type IIA open strings are attached to structures called D-branes.
OPEN STRINGS, D-BRANES, ENDPOINTS: A DREAM PERSPECTIVE
As I tried to imagine a boundary condition, I learned that all open strings must have their endpoints attached to these D-branes, which have dynamics of their own.
Even more curious in the dream was a connection of D-branes and monopoles to M-theory's eleven-dimensional universe to which all the string theories belong.
Among the topics are D-branes
and K-theory in two-dimensional topological field theory, open strings and Dirichlet branes, metric aspects of Calabi-Yau manifolds, and the mathematics of homological mirror symmetry.
described by Non-abelian Born-Infeld (BI) action  have many fascinating features.
Finally, generalizations of the Dirac-Konstant and Klein-Gordon-like equations relevant to the physics of D-branes and Matrix Models are presented.
Finally, in the conclusion 5, we present the generalizations of the Dirac-Konstant equations (and their "square" Klein-Gordon type equations) that are relevant to the incorporation of fermions and the physics of D-branes and Matrix Models.
It is warranted to study all these equations in future work and their relation to the physics of D-branes and Matrix Models .