Graph theory objects | Graph minor theory | Pursuit–evasion

Haven (graph theory)

In graph theory, a haven is a certain type of function on sets of vertices in an undirected graph. If a haven exists, it can be used by an evader to win a pursuit–evasion game on the graph, by consulting the function at each step of the game to determine a safe set of vertices to move into. Havens were first introduced by as a tool for characterizing the treewidth of graphs. Their other applications include proving the existence of small separators on minor-closed families of graphs, and characterizing the ends and clique minors of infinite graphs. (Wikipedia).

Haven (graph theory)
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What are Connected Graphs? | Graph Theory

What is a connected graph in graph theory? That is the subject of today's math lesson! A connected graph is a graph in which every pair of vertices is connected, which means there exists a path in the graph with those vertices as endpoints. We can think of it this way: if, by traveling acr

From playlist 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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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: 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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Walks trails paths and cycles

In this tutorial I explore the concepts of walks, trails, paths, cycles, and the connected graph.

From playlist Introducing graph theory

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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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Graph Theory: 36. Definition of a Tree

In this video I define a tree and a forest in graph theory. I discuss the difference between labelled trees and non-isomorphic trees. I also show why every tree must have at least two leaves. An introduction to Graph Theory by Dr. Sarada Herke. Related Videos: http://youtu.be/zxu0dL436gI

From playlist Graph Theory part-7

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Abel Prize award ceremony 2021

The ceremony honours both the 2020-winners, Hillel Furstenberg and Gregory Margulis, and the 2021-winners, Avi Wigderson and László́ Lovász. 0:30 Haddy N'jie sings Feeling Good 3:18 Welcome by Master of ceremonies, Haddy N'jie 4:46 On the nomination process and the work of the Abel Prize

From playlist Gregory Margulis

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Challenging Humanism: Jews, Theory, and Yale During the Closing Decades of the Twentieth Century

On January 26, the Yale Program for the Study of Antisemitism hosted a webinar with Gregory Jones-Katz, a professor at the Chinese University of Hong-Kong-Shenzhen entitled "Challenging Humanism:  Jews, Theory, and Yale During the Closing Decades of the Twentieth Century."  In a 35-minute

From playlist Yale Program for the Study of Antisemitism Lecture Series

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Graph Theory: 05. Connected and Regular Graphs

We give the definition of a connected graph and give examples of connected and disconnected graphs. We also discuss the concepts of the neighbourhood of a vertex and the degree of a vertex. This allows us to define a regular graph, and we give some examples of these. --An introduction to

From playlist Graph Theory part-1

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Introduction to Trees and Properties of Trees

This video introduces defines and gives the properties of tree graphs. mathispower4u.com

From playlist Graph Theory (Discrete Math)

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Stanford Seminar - Value Intellectual Capital

"Valuing Intellectual Capital" -Gio Wiederhold, Stanford University Colloquium on Computer Systems Seminar Series (EE380) presents the current research in design, implementation, analysis, and use of computer systems. Topics range from integrated circuits to operating systems and program

From playlist Engineering

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The Best Science Books of 2020 (SciFri Live Zoom Call-in)

We’re rounding up the best science books of 2020! Brian Muldoon from the Brooklyn Public Library and Valerie Thompson from Science Magazine discuss their picks with host John Dankosky. Our Live Zoom audience joined us for chance to share their favorites from this year. --- Because of the

From playlist SciFri Zoom Call-in Shows

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20. Pandemic Influenza

Epidemics in Western Society Since 1600 (HIST 234) Reliable records of influenza, dating back to the 1700s, suggest a pattern of one major pandemic every century. Among the pandemics for which there is solid documentary evidence, the outbreak of 1918-1920 is by far the greatest. The so-

From playlist Epidemics in Western Society Since 1600 with Frank Snowden

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1. Overview: information and entropy

MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012 View the complete course: http://ocw.mit.edu/6-02F12 Instructor: George Verghese This lecture covers some history of digital communication, with a focus on Samuel Morse and Claude Shannon, measuring information and

From playlist MIT 6.02 Introduction to EECS II: Digital Communication Systems, Fall 2012

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String Theory and the Real World - S. Schafer-Nameki - 2/24/2015

Introduction by John Schwarz. Learn more about the Inaugural Celebration and Symposium of the Walter Burke Institute for Theoretical Physics: https://burkeinstitute.caltech.edu/workshops/Inaugural_Symposium Produced in association with Caltech Academic Media Technologies. ©2015 Californi

From playlist Walter Burke Institute for Theoretical Physics - Dedication and Inaugural Symposium - Feb. 23-24, 2015

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What is a Path Graph? | Graph Theory

What is a path graph? We have previously discussed paths as being ways of moving through graphs without repeating vertices or edges, but today we can also talk about paths as being graphs themselves, and that is the topic of today's math lesson! A path graph is a graph whose vertices can

From playlist Graph Theory

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Power and Politics in Today’s World - Office Hours 2: The Collapse of Communism and its Aftermath II

Professor Shapiro and his TA, Christina Seyfried answer questions about A New Global Order.

From playlist Power and Politics in Today's World Office Hours

Related pages

Bramble (graph theory) | Clique (graph theory) | Graph theory | Treewidth | Equivalence relation | Pursuit–evasion | Equivalence class | Planar separator theorem | Vertex separator | Cardinal number | Hadwiger number | Vertex (graph theory) | Complete graph | Aleph number | End (graph theory) | Robertson–Seymour theorem