[256] A new iterative method in Waring's problem

[257] The analytic-functional calculus for several commuting operators

[258] Quantification geometrique, operateurs d’entrelacement et representations unitaires de $$\widetilde{SL_3 }(R)$$

[259] Bounded orthogonal systems and the Λ($p$)-set problem

[260] Subellipticity of the $$\bar \partial$$ -Neumann problem on pseudo-convex domains: Sufficient conditionsproblem on pseudo-convex domains: Sufficient conditions