Deformation, non-commutativity and the cosmological constant problem

Abstract

In this talk we provide arguments on possible relation between the cosmological constant in our space and the non-commutativity parameter of the internal space of compactified string theory. The arguments are valid in the context of D3/D7 brane cosmological model of inflation/acceleration.

Comments: A talk at the conference in honor of Albert Schwarz. 5 pages, 7 figures