Geodesic
On the algebraic properties of the H n 2,1 2 spaces
Klainerman, Sergiu1  ; Machedon, Matei1
1 Department of Mathematics, Princeton University, University of Maryland
Séminaire Équations aux dérivées partielles (Polytechnique) dit aussi "Séminaire Goulaouic-Schwartz" (1997-1998), Exposé no. 7, 9 p.

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We investigate the multiplicative properties of the spaces H n 2,1 2 As in the case of the classical Sobolev spaces H n 2 this space does not form an algebra. We investigate instead the space H n 2 ∩L ∞ , more precisely a subspace of it formed by products of solutions of the homogeneous wave equation with data in H n 2 .

Klainerman, Sergiu 1 ; Machedon, Matei 1

1 Department of Mathematics, Princeton University, University of Maryland 
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     title = {On the algebraic properties of the $H_{\frac{n}{2},{\frac{1}{2}}}$ spaces},
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Klainerman, Sergiu; Machedon, Matei. On the algebraic properties of the $H_{\frac{n}{2},{\frac{1}{2}}}$ spaces. Séminaire Équations aux dérivées partielles (Polytechnique) dit aussi "Séminaire Goulaouic-Schwartz" (1997-1998), Exposé no. 7, 9 p. http://geodesic.mathdoc.fr/item/SEDP_1997-1998____A7_0/

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