---
tag: 8YG17VDFY1
kind: concept
name: Peripheral
sources:
  - wikipedia: en:325802@r1373839425
    locator: Glossary of graph theory, section P
    note: adopted
    mention: wikipedia://en/325802#GD4C
    sections: [Summary]
inventory: [NTG442TVB6]
---

## Summary

A peripheral cycle or non-separating cycle is a cycle with at most one bridge.

A peripheral vertex is a vertex whose eccentricity is maximum. In a tree, this must be a leaf.