This article establishes a new integral inequality, demonstrating its applicability through additional inequalities.
This article establishes a new trigonometric-Hardy-Hilbert-type integral inequality involving a cosine-difference kernel function. The proof relies on several changes of variables and a well-known variation of the Hardy-Hilbert integral inequality. A sharp constant factor is obtained. Two additional integral inequalities are presented to demonstrate the applicability of the main result.
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Christophe Chesneau (2026) studied this question.
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