Refinements of some classical inequalities involving sinc and hyperbolic sinc functions. (English) Zbl 07665189
Summary: Several bounds of trigonometric-exponential and hyperbolic-exponential type for sinc and hyperbolic sinc functions are presented. In an attempt to generalize the results, some known inequalities are sharpened and extended. Hyperbolic versions are also established, along with extensions.
MSC:
| 26D05 | Inequalities for trigonometric functions and polynomials |
| 26D07 | Inequalities involving other types of functions |
| 33B10 | Exponential and trigonometric functions |
Keywords:
trigonometric-exponential; hyperbolic-exponential; Mitrinović-Adamović inequality; Lazarević inequality; Iyengar-Madhava Rao-Nanjudiah inequalityReferences:
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