Marginal deformations with U(1)³ global symmetry

We generate new 11-dimensional supergravity solutions from deformations based on U(1)³ symmetries. The initial geometries are of the form AdS₄ × Y₇, where Y₇ is a 7-dimensional Sasaki-Einstein space. We consider a general family of cohomogeneity one Sasaki-Einstein spaces, as well as the recently-constructed cohomogeneity three L^p,q,r,s spaces. For certain cases, such as when the Sasaki-Einstein space is S⁷, Q^1,1,1 or M^1,1,1, the deformed gravity solutions correspond to a marginal deformation of a known dual gauge theory.