A bstract We construct solutions of type-II supergravity based on multiple copies and/or mixings of λ -deformed coset CFTs on SO{ (n+1) ₖ}SO{ (n) ₖ} SO n + 1 k SO n k, with n = 2, 3, 4. The resulting ten-dimensional geometries contain undeformed AdS factors, thereby allowing a connection between λ -deformations and the AdS/CFT correspondence. Imposing reality conditions on the solutions further constrains the deformation parameter. In some cases these bounds exclude the undeformed (λ = 0) or non-Abelian T-dual (λ → 1) limits. This work extends the results of arXiv: 1911. 12371 and arXiv: 2411. 11086.
Casale et al. (Thu,) studied this question.