Search results

Extremal graph theory studies the problems like "how many edges that a graph <math>G</math> can have, if <math>G</math> has some property?" :Suppose <math>G(V,E)</math> is graph on <math>n</math> vertice without triangles. Then <math>|E|\le\frac{n^2}{4} ...

Extremal graph theory studies the problems like "how many edges that a graph <math>G</math> can have, if <math>G</math> has some property?" :Suppose <math>G(V,E)</math> is graph on <math>n</math> vertice without triangles. Then <math>|E|\le\frac{n^2}{4} ...

...llest number <math>R(k,\ell)</math> satisfying the condition in the Ramsey theory is called the '''Ramsey number'''. Prove that: Suppose that <math>M,M'</math> are matchings in a bipartite graph <math>G</math> with bipartition <math>A,B</math>. Suppose that all the vert ...

== Extremal Graph Theory == Extremal grap theory studies the problems like "how many edges that a graph <math>G</math> can have, if <math>G</math> has some property?" ...

Extremal graph theory studies the problems like "how many edges that a graph <math>G</math> can have, if <math>G</math> has some property?" :Suppose <math>G(V,E)</math> is graph on <math>n</math> vertice without triangles. Then <math>|E|\le\frac{n^2}{4} ...

Extremal graph theory studies the problems like "how many edges that a graph <math>G</math> can have, if <math>G</math> has some property?" :Suppose <math>G(V,E)</math> is graph on <math>n</math> vertice without triangles. Then <math>|E|\le\frac{n^2}{4} ...

Extremal graph theory studies the problems like "how many edges that a graph <math>G</math> can have, if <math>G</math> has some property?" :Suppose <math>G(V,E)</math> is graph on <math>n</math> vertice without triangles. Then <math>|E|\le\frac{n^2}{4} ...

Extremal graph theory studies the problems like "how many edges that a graph <math>G</math> can have, if <math>G</math> has some property?" :Suppose <math>G(V,E)</math> is graph on <math>n</math> vertice without triangles. Then <math>|E|\le\frac{n^2}{4} ...

== Graph Expansion == ...been used in proofs of many important results in computational complexity theory, such as [http://en.wikipedia.org/wiki/SL_(complexity) SL]=[http://en.wikip ...

#* [[随机算法 (Fall 2011)/Graph Connectivity|Graph Connectivity]] #* [[随机算法 (Fall 2011)/Graph Coloring|Graph Coloring]] ...

== Problem 5 (Probability meets graph theory) == <li>[<strong>Erdős–Rényi random graph</strong>] ...

Consider a graph <math>G(V,E)</math> which is randomly generated as: Such graph is denoted as '''<math>G(n,p)</math>'''. This is called the '''Erdős–Rényi ...

Consider a graph <math>G(V,E)</math> which is randomly generated as: Such graph is denoted as '''<math>G(n,p)</math>'''. This is called the '''Erdős–Rényi ...

...results in spectral graph theory is the following theorem which relate the graph expansion to the spectral gap. :Let <math>G</math> be a <math>d</math>-regular graph with spectrum <math>\lambda_1\ge\lambda_2\ge\cdots\ge\lambda_n</math>. Then ...

* 概率论（Probability Theory） # [[组合数学 (Fall 2024)/Pólya's theory of counting|Pólya's theory of counting | Pólya计数法]] ([http://tcs.nju.edu.cn/slides/comb2024/Polya.pdf ...

...he problem and an output is called a '''solution''' to that instance. The theory of complexity deals almost exclusively with [http://en.wikipedia.org/wiki/D ...itself is a certificate. And for the later one, a Hamiltonian cycle in the graph is a certificate (given a cycle, it is easy to verify whether it is Hamilto ...

...h> and <math>W</math> denotes the maximum edge weight. When the underlying graph is super dense, namely, the total number of insertions <math>m</math> is <m :In this work, we provide two algorithms for this problem when the graph is sparse. The first one is a simple deterministic algorithm with <math>\ti ...

...h> and <math>W</math> denotes the maximum edge weight. When the underlying graph is super dense, namely, the total number of insertions <math>m</math> is <m :In this work, we provide two algorithms for this problem when the graph is sparse. The first one is a simple deterministic algorithm with <math>\ti ...

...s usually stated as a theorem for the existence of matching in a bipartite graph. In a graph <math>G(V,E)</math>, a '''matching''' <math>M\subseteq E</math> is an indep ...

...s usually stated as a theorem for the existence of matching in a bipartite graph. In a graph <math>G(V,E)</math>, a '''matching''' <math>M\subseteq E</math> is an indep ...