Author/Authors :
P.G. Lemarié-Rieusset ?، نويسنده , , S. Gala، نويسنده ,
Abstract :
We characterize the pointwise multipliers which maps a Sobolev space H˙ r (Rd ) to a Sobolev space
H˙ s (Rd ) in the case |s| < r
Keywords :
sobolev spaces , multipliers , Paraproducts , Fractional differentiation , Singular integrals
Journal title :
Journal of Mathematical Analysis and Applications
Journal title :
Journal of Mathematical Analysis and Applications