Functions on the real line with nonnegative fourier transforms

Takeshi Kawazoe, Yoshikazu Onoe, Kazuya Tachizawa

研究成果: Article

5 引用 (Scopus)

抜粋

Unlike an integrable function on the unit circle which has the nonnegative Fourier coefficients and is square-integrable near the origin, an integrable function on the real line which has the nonnegative Fourier transform and is square-integrable near the origin is not always square-integrable on the real line. We give some examples, and consider an additional condition which guarantees the global square-integrability. Moreover, we treat an analogous problem for an integrable function on the real line which has non-negative wavelet coefficients of the Fourier transform and is squareintegrable near the origin.

元の言語English
ページ(範囲)311-320
ページ数10
ジャーナルTohoku Mathematical Journal
46
発行部数3
DOI
出版物ステータスPublished - 1994

ASJC Scopus subject areas

  • Mathematics(all)

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