%0 Journal Article %T On the constants in some inequalities for the Sobolev norms and pointwise product %A Morosi Carlo %A Pizzocchero Livio %J Journal of Inequalities and Applications %D 2002 %I Springer %X We consider the Sobolev norms of the pointwise product of two functions, and estimate from above and below the constants appearing in two related inequalities. %K Sobolev spaces %K Inequalities %K Pointwise multiplication %U http://www.journalofinequalitiesandapplications.com/content/7/974053