Some trigonometric theorems
نویسندگان
چکیده
منابع مشابه
Some spherical uniqueness theorems for multiple trigonometric series
We prove that if a multiple trigonometric series is spherically Abel summable everywhere to an everywhere finite function f(x) which is bounded below by an integrable function, then the series is the Fourier series of f(x) if the coefficients of the multiple trigonometric series satisfy a mild growth condition. As a consequence, we show that if a multiple trigonometric series is spherically con...
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ژورنال
عنوان ژورنال: Časopis pro pěstování matematiky a fysiky
سال: 1898
ISSN: 1802-114X
DOI: 10.21136/cpmf.1898.121864