Directed graphs | Graph theory | Graph data structures
In mathematics, and more specifically in graph theory, a directed graph (or digraph) is a graph that is made up of a set of vertices connected by directed edges, often called arcs. (Wikipedia).
Intro to Directed Graphs | Digraph Theory
What are directed graphs, or digraphs as they are often called? We introduce digraphs and some related terms in today's graph theory lesson! A directed graph is like a simple graph, except the edges of a digraph have - you guessed it - direction! Thus, we will see we need to use ordered
From playlist Graph Theory
Introduction to graph theory. Directed and undirected graph
From playlist Graph Theory
Underlying Graphs of Digraphs | Directed Graphs, Graph Theory
What are underlying graphs of directed graphs in graph theory? This is a sort of undirected graph that "underlies" or "lies under" a directed graph. But how is it actually defined? We'll go over that in today's video graph theory lesson! A simple way to define the underlying graph of a di
From playlist Graph Theory
Directed graphs or digraphs add direction to the connection (edge) between nodes. In this video I introduce the topic of directed graphs by way of simple examples and show you how to draw these graphs in Mathematica. You can learn more about Mathematica on my Udemy course at https://www.
From playlist Introducing graph theory
Weakly Connected Directed Graphs | Digraph Theory
What is a connected digraph? When we start considering directed graphs, we have to rethink our definition of connected. We say that an undirected graph is connected if there exists a path connecting every pair of vertices. However, in a directed graph, we need to be more specific since it
From playlist Graph Theory
Strongly Connected Directed Graphs | Graph Theory, Digraph Theory
What are strongly connected digraphs? That's what we'll be going over in today's graph theory lesson. We'll recap connectedness, what it means to be weakly connected, and then finish off with the definition of strongly connected! We say a directed graph D is strongly connected if, for eve
From playlist Graph Theory
Section 4b: Graph Connectivity
From playlist Graph Theory
Parallel Edges in Multigraphs and Digraphs | Graph Theory, Multiple Edges, Multisets
What are parallel edges, also called multiple edges or multi-edges, in graph theory? We'll introduce parallel edges in the context of undirected multi-graphs and in directed graphs in today's video graph theory lesson! Lesson on directed graphs: https://www.youtube.com/watch?v=mXoiHgH4mE
From playlist Graph Theory
Intro to Tournament Graphs | Graph Theory
We introduce directed tournament graphs, which can be thought of as a graph representing the outcome of a round robin tournament - where vertices represent teams, and directed edges (arcs) go from winners to losers. We'll also discuss how many labelled tournaments there are on n vertices,
From playlist Graph Theory
What's a Directed Acyclic Graph (DAG)?
The first 40 minutes here introduce the necessary graph theory. Me on the blockchain data structure: https://youtu.be/w3sI8WVX-cc The mentioned article on IOTA: http://elm.nyc/research-1/2018/2/15/iota-tangle-eli5 Jackson Palmer on 3 projects using DAGs: https://youtu.be/LtWUJtnQbKs Conste
From playlist Programming
Daniela Egas Santander (6/30/21): Nerve theorems for fixed points of neural networks
A fundamental question in computational neuroscience is to understand how the network’s connectivity shapes neural activity. A popular framework for modeling neural activity are a class of recurrent neural networks called threshold linear networks (TLNs). A special case of these are comb
From playlist AATRN 2021
Data structures: Properties of Graphs
See complete series on data structures here: http://www.youtube.com/playlist?list=PL2_aWCzGMAwI3W_JlcBbtYTwiQSsOTa6P In this lesson, we have described below properties of Graph data structure: a) directed graph vs undirected graph b) weighted graph vs unweighted graph c) sparse graph vs
From playlist Data structures
Orientations of Graphs | Directed Graphs, Digraph Theory
What is an orientation of a graph? We'll be going over the definition of this directed graph concept and some examples in today's lesson! Support Wrath of Math on PayPal: paypal.me/wrathofmath Given an undirected graph G, an orientation of G is a directed graph obtained by assigning a di
From playlist Graph Theory
Graphs In Data Structures | Graph Representation In Data Structure | Data Structures | Simplilearn
This data structures tutorial is dedicated to helping beginners understand the graphs in data structures. In this tutorial, you will understand the fundamentals and terminologies of the graph data structure, their types and their representation using different methods. The graphs in this t
From playlist Data Structures & Algorithms [2022 Updated]
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
Discrete Math - 10.1.1 Introduction to Graphs
A brief introduction to graphs including some terminology and discussion of types of graphs and their properties. Textbook: Rosen, Discrete Mathematics and Its Applications, 7e Playlist: https://www.youtube.com/playlist?list=PLl-gb0E4MII28GykmtuBXNUNoej-vY5Rz
From playlist Discrete Math I (Entire Course)