English

Note on constants appearing in refined Young inequalities

Classical Analysis and ODEs 2019-07-11 v2

Abstract

In this short note, we give the refined Young inequality with Specht's ratio by only elementary and direct calculations. The obtained inequality is better than one previously shown by the author in 2012. In addition, we give a new property of Specht's ratio. These imply an alternative proof of the refined Young ineqaulity shown by author in 2012. We also give a remark on the relation to Kantorovich constant. Finally, we give a proposition for a corresponding general function.

Keywords

Cite

@article{arxiv.1812.07453,
  title  = {Note on constants appearing in refined Young inequalities},
  author = {Shigeru Furuichi},
  journal= {arXiv preprint arXiv:1812.07453},
  year   = {2019}
}

Comments

8 pages

R2 v1 2026-06-23T06:46:30.546Z