English

Multiple-angle formulas of generalized trigonometric functions with two parameters

Classical Analysis and ODEs 2019-03-12 v1 Analysis of PDEs

Abstract

Generalized trigonometric functions with two parameters were introduced by Dr\'{a}bek and Man\'{a}sevich to study an inhomogeneous eigenvalue problem of the pp-Laplacian. Concerning these functions, no multiple-angle formula has been known except for the classical cases and a special case discovered by Edmunds, Gurka and Lang, not to mention addition theorems. In this paper, we will present new multiple-angle formulas which are established between two kinds of the generalized trigonometric functions, and apply the formulas to generalize classical topics related to the trigonometric functions and the lemniscate function.

Keywords

Cite

@article{arxiv.1603.06709,
  title  = {Multiple-angle formulas of generalized trigonometric functions with two parameters},
  author = {Shingo Takeuchi},
  journal= {arXiv preprint arXiv:1603.06709},
  year   = {2019}
}

Comments

19 pages

R2 v1 2026-06-22T13:15:54.179Z