English

On Ramanujan Cubic Polynomials

Commutative Algebra 2007-11-22 v1

Abstract

A polynomial x^3+px^2+qx+r with the condition pr^(1/3)+ 3r^(2/3)+q=0 we call a Ramanujan cubic polynomial (RCP). We study different interest properties of RCP, in particular, an important role of a parameter pq/r. We prove some new beautiful identities containing sums of 6 cubic radicals of values of trigonometrical functions as well.

Keywords

Cite

@article{arxiv.0711.3420,
  title  = {On Ramanujan Cubic Polynomials},
  author = {Vladimir Shevelev},
  journal= {arXiv preprint arXiv:0711.3420},
  year   = {2007}
}

Comments

11 pages

R2 v1 2026-06-21T09:45:55.802Z