Graph invariants

Girth (graph theory)

In graph theory, the girth of an undirected graph is the length of a shortest cycle contained in the graph. If the graph does not contain any cycles (that is, it is a forest), its girth is defined to be infinity.For example, a 4-cycle (square) has girth 4. A grid has girth 4 as well, and a triangular mesh has girth 3. A graph with girth four or more is triangle-free. (Wikipedia).

Girth (graph theory)
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The Definition of a Graph (Graph Theory)

The Definition of a Graph (Graph Theory) mathispower4u.com

From playlist Graph Theory (Discrete Math)

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Graph Theory FAQs: 01. More General Graph Definition

In video 02: Definition of a Graph, we defined a (simple) graph as a set of vertices together with a set of edges where the edges are 2-subsets of the vertex set. Notice that this definition does not allow for multiple edges or loops. In general on this channel, we have been discussing o

From playlist Graph Theory FAQs

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Piotr Przytycki: Subgraphs of diameter 1 in graphs of girth 2

HYBRID EVENT Recorded during the meeting "Metric Graph Theory and Related Topics " the December 09, 2021 by the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given by worldwide mathematicians on CIRM

From playlist Combinatorics

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Graph Theory: 02. Definition of a Graph

In this video we formally define what a graph is in Graph Theory and explain the concept with an example. In this introductory video, no previous knowledge of Graph Theory will be assumed. --An introduction to Graph Theory by Dr. Sarada Herke. This video is a remake of the "02. Definitio

From playlist Graph Theory part-1

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What is a Graph? | Graph Theory

What is a graph? A graph theory graph, in particular, is the subject of discussion today. In graph theory, a graph is an ordered pair consisting of a vertex set, then an edge set. Graphs are often represented as diagrams, with dots representing vertices, and lines representing edges. Each

From playlist Graph Theory

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Graph Theory Talk: Graphs, Edges, Vertices, Adjacency Matrix and it's Eigenvalues

Graph Theory Stuff: Graphs, Edges, Vertices, Adjacency Matrix and it's Eigenvalues

From playlist Graph Theory

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How Many Cops to Catch a Robber? | Infinite Series

Viewers like you help make PBS (Thank you 😃) . Support your local PBS Member Station here: https://to.pbs.org/donateinfi Last episode, we used graph theory to figure out how a cop could catch a robber. But what happens when we introduce multiple cops? What happens if you have "lazy" cops

From playlist An Infinite Playlist

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More Graph Theory Definitions

This video explains the definitions of simple graphs, multigraphs, connected and not connected graphs, complete graphs, and the Handshake lemma. mathispower4u.com

From playlist Graph Theory (Discrete Math)

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Graph Theory: 03. Examples of Graphs

We provide some basic examples of graphs in Graph Theory. This video will help you to get familiar with the notation and what it represents. We also discuss the idea of adjacent vertices and edges. --An introduction to Graph Theory by Dr. Sarada Herke. Links to the related videos: https

From playlist Graph Theory part-1

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Stability and Invariant Random Subgroups - Henry Bradford

Stability and Testability Topic: Stability and Invariant Random Subgroups Speaker: Henry Bradford Affiliation: Cambridge University Date: January 20, 2021 For more video please visit http://video.ias.edu

From playlist Stability and Testability

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Joel Friedman - Sheaves on Graphs, L^2 Betti Numbers, and Applications.

Joel Friedman (University of British Columbia, Canada) Sheaf theory and (co)homology, in the generality developed by Grothendieck et al., seems to hold great promise for applications in discrete mathematics. We shall describe sheaves on graphs and their applications to (1) solving the

From playlist T1-2014 : Random walks and asymptopic geometry of groups.

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Common Linear Patterns Are Rare - Nina Kamčev

Computer Science/Discrete Mathematics Seminar I Topic: Common Linear Patterns Are Rare Speaker: Nina Kamčev Affiliation: University of Zagreb Date: April 03, 2023  Several classical results in Ramsey theory (including famous theorems of Schur, van der Waerden, Rado) deal with finding mon

From playlist Mathematics

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Adventures in Perturbation Theory by Jake Bourjaily

PROGRAM RECENT DEVELOPMENTS IN S-MATRIX THEORY (ONLINE) ORGANIZERS: Alok Laddha, Song He and Yu-tin Huang DATE: 20 July 2020 to 31 July 2020 VENUE:Online Due to the ongoing COVID-19 pandemic, the original program has been canceled. However, the meeting will be conducted through online

From playlist Recent Developments in S-matrix Theory (Online)

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What is a Bipartite Graph? | Graph Theory

What is a bipartite graph? We go over it in today’s lesson! I find all of these different types of graphs very interesting, so I hope you will enjoy this lesson. A bipartite graph is any graph whose vertex set can be partitioned into two disjoint sets (called partite sets), such that all e

From playlist Graph Theory

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Stanford Lecture: Donald Knuth - "Cool Graphs" (June 6, 2007)

June 6, 2007 Professor Knuth is the Professor Emeritus at Stanford University. Dr. Knuth's classic programming texts include his seminal work The Art of Computer Programming, Volumes 1-3, widely considered to be among the best scientific writings of the century.

From playlist Donald Knuth Lectures

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Ex: Solve an Exponential Decay Equation Graphically Using the TI84 (Application)

This video explains how to find exponential function values and solve an exponential equation graphically using the TI84.

From playlist Solving Applications of Exponential Growth and Decay

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Graph Theory: Basic Definitions

This video describes some basic definitions associated with graph theory.

From playlist Basics: Graph Theory

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Ex: Solve an Exponential Decay Equation Graphically Using the Desmos (Application)

This video explains how to find exponential function values and solve an exponential equation graphically using the Desmos grapher.

From playlist Solving Applications of Exponential Growth and Decay

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