English

Inequalities about the area bounded by three cevian lines of a triangle

Metric Geometry 2025-11-07 v2

Abstract

In the paper we prove generalization of Schl\"omilch's and Zetel's theorems about concurrent lines in a triangle. This generalization is obtained as a corollary of sharp geometric inequality about the ratio of triangular areas which is proved using discrete variant of H\"older's inequality. Also a new sharp refinement of J.F. Rigby's inequality, which itself generalized M\"obius theorem about the areas of triangles formed by cevians of a triangle, is proved.

Keywords

Cite

@article{arxiv.2401.00930,
  title  = {Inequalities about the area bounded by three cevian lines of a triangle},
  author = {Yagub N. Aliyev},
  journal= {arXiv preprint arXiv:2401.00930},
  year   = {2025}
}