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Scientific notes and problems
On the completeness of a system of trigonometric functions
V. A. Ditkin
Citation:
V. A. Ditkin, “On the completeness of a system of trigonometric functions”, Russian Math. Surveys, 5:2 (1950)
Linking options:
https://www.mathnet.ru/eng/rm8420 https://www.mathnet.ru/eng/rm/v5/i2/p196
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