English

On critical and maximal digraphs

Discrete Mathematics 2018-07-25 v1 Combinatorics

Abstract

This paper is devoted to the study of directed graphs with extremal properties relative to certain metric functionals. We characterize up to isomorphism critical digraphs with infinite values of diameter, quasi-diameter, radius and quasi-radius. Moreover, maximal digraphs with finite values of radius and quasi-diameter are studied.

Keywords

Cite

@article{arxiv.1807.09026,
  title  = {On critical and maximal digraphs},
  author = {G. Š. Fridman},
  journal= {arXiv preprint arXiv:1807.09026},
  year   = {2018}
}

Comments

Detailed proof of the theorems published earlier by Author in Soviet Math. Dokl. 14, No. 5, 1435-1439

R2 v1 2026-06-23T03:12:16.346Z