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Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

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Tchakaloff’s theorem and $K$-integral polynomials in Banach spaces
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by Damián Pinasco and Ignacio Zalduendo PDF
Proc. Amer. Math. Soc. 145 (2017), 3395-3408 Request permission

Abstract:

Tchakaloff’s theorem gives a quadrature formula for polynomials of a given degree with respect to a compactly supported positive measure which is absolutely continuous with respect to Lebesgue measure. We study the validity of two possible analogues of Tchakaloff’s theorem in an infinite-dimensional Banach space $E$: a weak form valid when $E$ has a Schauder basis, and a stronger form requiring conditions on the support of the measure as well as on the space $E$.
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Additional Information
  • Damián Pinasco
  • Affiliation: Departamento de Matemática, Universidad Torcuato Di Tella, Av. Figueroa Alcorta 7350 (C1428BCW), Buenos Aires, Argentina – and – CONICET
  • Email: dpinasco@utdt.edu
  • Ignacio Zalduendo
  • Affiliation: Departamento de Matemática, Universidad Torcuato Di Tella, Av. Figueroa Alcorta 7350 (C1428BCW), Buenos Aires, Argentina – and – CONICET
  • MR Author ID: 186385
  • Email: nacho@utdt.edu
  • Received by editor(s): October 29, 2015
  • Received by editor(s) in revised form: July 4, 2016, and August 31, 2016
  • Published electronically: January 25, 2017
  • Additional Notes: The authors were partially supported by CONICET (PIP 11220090100624).
  • Communicated by: Thomas Schlumprecht
  • © Copyright 2017 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 145 (2017), 3395-3408
  • MSC (2010): Primary 46E50; Secondary 28C20, 46G12, 46G20
  • DOI: https://doi.org/10.1090/proc/13520
  • MathSciNet review: 3652793