Computational problems in graph theory | NP-complete problems

Graph partition

In mathematics, a graph partition is the reduction of a graph to a smaller graph by partitioning its set of nodes into mutually exclusive groups. Edges of the original graph that cross between the groups will produce edges in the partitioned graph. If the number of resulting edges is small compared to the original graph, then the partitioned graph may be better suited for analysis and problem-solving than the original. Finding a partition that simplifies graph analysis is a hard problem, but one that has applications to scientific computing, VLSI circuit design, and task scheduling in multiprocessor computers, among others. Recently, the graph partition problem has gained importance due to its application for clustering and detection of cliques in social, pathological and biological networks. For a survey on recent trends in computational methods and applications see .Two common examples of graph partitioning are minimum cut and maximum cut problems. (Wikipedia).

Graph partition
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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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Graph Neural Networks, Session 2: Graph Definition

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This video is about tournaments and some of their basic properties.

From playlist Basics: 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 FAQs: 04. Isomorphism vs Homomorphism

In this video we recall the definition of a graph isomorphism and then give the definition of a graph homomorphism. Then we look at two examples of graph homomorphisms and discuss a special case that relates to graph colourings. -- Graph Theory FAQs by Dr. Sarada Herke. Related videos:

From playlist Graph Theory FAQs

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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: 09. Graph Isomorphisms

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From playlist Graph Theory part-2

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From playlist Graph Theory part-1

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A Tight Bound for Hypergraph Regularity - Guy Moshkovitz

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From playlist Mathematics

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Network Science 2021 @ HSE http://www.leonidzhukov.net/hse/2021/networks/

From playlist Network Science, 2021

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From playlist Graph Theory

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From playlist Mathematics

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From playlist Oxford Mathematics Student Lectures - Networks

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A stable arithmetic regularity lemma in finite (...) - C. Terry - Workshop 1 - CEB T1 2018

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From playlist 2018 - T1 - Model Theory, Combinatorics and Valued fields

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9. Szemerédi's graph regularity lemma IV: induced removal lemma

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From playlist MIT 18.217 Graph Theory and Additive Combinatorics, Fall 2019

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

From playlist Graph Theory (Discrete Math)

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A Proof on Hamiltonian Complete Bipartite Graphs | Graph Theory, Hamiltonian Graphs

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From playlist Graph Theory

Related pages

Graph (discrete mathematics) | Minimum cut | Conductance (graph) | Spectral clustering | Hamiltonian mechanics | Planar graph | Cheeger bound | Laplacian matrix | Modularity (networks) | Kernighan–Lin algorithm | Adjacency matrix | LOBPCG | Partition of a set | Hypergraph | Degree matrix | Graph partition | Algebraic connectivity | Planar separator theorem | Finite element method | Scikit-learn | Maximum cut | METIS