Bilinear pseudodifferential operators with symbol in BSm1,1 on Triebel–Lizorkin spaces with critical Sobolev index

• Arias, Sergi ^[1] ; Rodríguez-López, Salvador ^[1]
  1. [1] Stockholm University

     Stockholm University

     Suecia

     
• Localización: Collectanea mathematica, ISSN 0010-0757, Vol. 75, Fasc. 2, 2024, págs. 567-591
• Idioma: inglés
• Enlaces
  • Texto completo
• Resumen

  • In this paper we obtain new estimates for bilinear pseudodifferential operators with symbol in the class , when both arguments belong to Triebel-Lizorkin spaces of the type . The inequalities are obtained as a consequence of a refinement of the classical Sobolev embedding , where we replace by an appropriate subspace which contains . As an application, we study the product of functions on when , where those spaces fail to be multiplicative algebras.