A new type of general Hilbert integral inequality with examples
摘要
The establishment of new integral inequalities is important in several areas of mathematics, including the analysis of functional spaces and study of partial differential equations. In this paper, we contribute to the subject by proving a new general type of Hilbert integral inequality whose main double integral has the property of depending on an adaptive trivariate function. The proof makes use of a “quadratic polar change-of-variables technique”, which is advantageous for its tractability and elegance. Furthermore, it is an underexplored technique in this context, so our developments may inspire research in this direction. Several examples are given, including old and new integral inequalities.