Approximation Theory for Weighted Sobolev Spaces on Curves

نویسندگان

  • VENANCIO ÁLVAREZ
  • DOMINGO PESTANA
  • JOSÉ M. RODRÍGUEZ
  • ELENA ROMERA
  • E. ROMERA
چکیده

In this paper we present a definition of weighted Sobolev spaces on curves and find general conditions under which the spaces are complete. We also prove the density of the polynomials in these spaces for non-closed compact curves and, finally, we find conditions under which the multiplication operator is bounded on the completion of polynomials. These results have applications to the study of zeroes and asymptotics of Sobolev orthogonal polynomials.

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تاریخ انتشار 2001