On the Lorentz degree of a product of polynomials

Rachid Ait-Haddou

Research output: Contribution to journalArticlepeer-review

2 Scopus citations


In this note, we negatively answer two questions of T. Erdélyi (1991, 2010) on possible lower bounds on the Lorentz degree of product of two polynomials. We show that the correctness of one question for degree two polynomials is a direct consequence of a result of Barnard et al. (1991) on polynomials with nonnegative coefficients.
Original languageEnglish (US)
Pages (from-to)81-87
Number of pages7
JournalJournal of Approximation Theory
StatePublished - Jan 2015

ASJC Scopus subject areas

  • Analysis
  • Applied Mathematics
  • General Mathematics
  • Numerical Analysis


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