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Star (graph theory)

In graph theory, the star Sk is the complete bipartite graph K1, k, that is, it is a tree with one internal node and k leaves. Alternatively, some authors define Sk to be the tree of order k with maximum diameter 2, in which case a star of k > 2 has k − 1 leaves.

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Explore the main themes, entities and connections around Star (graph theory). Start with the topic map, then use the sections below for research and deeper semantic analysis.

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Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Chromatic index
k
Chromatic number
2
Diameter
2
Edges
k
Girth
∞ {\displaystyle \infty }
Notation
Sk

Topics to explore

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Overview

Relation to other graph families

Other applications

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

Map overview Semantic statistics

Star (graph theory)

Nodes33
Edges32
Triples8
Avg. degree1.94
Density0.060606
Components1

How this topic connects Entity context

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Star (graph theory)

Top relations

Chromatic index · 1
Star (graph theory) → k
Chromatic number · 1
Star (graph theory) → 2
Diameter · 1
Star (graph theory) → 2
Edges · 1
Star (graph theory) → k
Girth · 1
Star (graph theory) → ∞ {\displaystyle \infty }
Notation · 1
Star (graph theory) → Sk
Properties · 1
Star (graph theory) → Edge-transitive Tree Unit distance Bipartite
Vertices · 1
Star (graph theory) → k + 1

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

star graph tree sk graphs diameter one claw stars also edges chromatic number edge-transitive connected vertex leaves bipartite girth vertices

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
Star (graph theory)Chromatic indexk1.00infobox
Star (graph theory)Chromatic number21.00infobox
Star (graph theory)Diameter21.00infobox
Star (graph theory)Edgesk1.00infobox
Star (graph theory)Girth∞ {\displaystyle \infty }1.00infobox
Star (graph theory)NotationSk1.00infobox
Star (graph theory)PropertiesEdge-transitive Tree Unit distance Bipartite1.00infobox
Star (graph theory)Verticesk + 11.00infobox

Related concept clusters Concept neighborhoods

These clusters group vocabulary that occurs around closely connected concepts in the source material.

    Connections between topic areas Semantic bridges

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    Min side: 3
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