Extremal values of double and triple trigonometric functions

Nobushige Kurokawa, Masato Wakayama

Research output: Contribution to journalArticle

11 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 languageEnglish
Pages (from-to)141-166
Number of pages26
JournalKyushu Journal of Mathematics
Volume58
Issue number1
DOIs
Publication statusPublished - Jan 1 2004
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Mathematics(all)

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