Extremal values of double and triple trigonometric functions

Nobushige Kurokawa; Masato Wakayama

doi:10.2206/kyushujm.58.141

Extremal values of double and triple trigonometric functions

Nobushige Kurokawa, Masato Wakayama

Research output: Contribution to journal › Article › peer-review

10 Citations (Scopus)

Abstract

We study the extremal values of the double and the triple trigonometric functions defined via the infinite products. In particular, we show that the extremal values of the triple sine function are intimately related to the mysterious value ζ(3). The results also allow us to sketch their graphs.

Original language	English
Pages (from-to)	141-166
Number of pages	26
Journal	Kyushu Journal of Mathematics
Volume	58
Issue number	1
DOIs	https://doi.org/10.2206/kyushujm.58.141
Publication status	Published - Jan 1 2004
Externally published	Yes

All Science Journal Classification (ASJC) codes

Mathematics(all)

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10.2206/kyushujm.58.141

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Extremal values of double and triple trigonometric functions

Abstract

All Science Journal Classification (ASJC) codes

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