English

Isogonal Conjugacy and Fermat Problems

General Mathematics 2007-08-13 v1

Abstract

We consider three types of isogonal conjugacy of two points with respect to a given triangle and characterize any of these types by a geometric equality. As an application to the Fermat problem with positive weights, we prove that in the general case the given weights determine uniquely a point X and the solution to the Fermat problem is the point Y, which is isogonally conjugate of type I to the point X. We obtain a similar characterization of the solution to the Fermat problem in the case of mixed weights as well.

Cite

@article{arxiv.0708.1374,
  title  = {Isogonal Conjugacy and Fermat Problems},
  author = {Georgi Ganchev and Nikolai Nikolov},
  journal= {arXiv preprint arXiv:0708.1374},
  year   = {2007}
}

Comments

11 pages, 8 figures

R2 v1 2026-06-21T09:06:22.439Z