# Undirected

### Cycles in an Undirected Graph

Cycles in an Undirected Graph 1. Determine if an undirected graph G = ( V , E ) is connected, where | V | = n and | E | = m . 2. Find all the cycles in an undirected graph G .

### Reducing Directed Max Flow to Undirected Max Flow

Reducing Directed Max Flow to Undirected Max Flow Henry Lin Division of Computer Science, U.C. Berkeley. Email: henrylin@eecs.berkeley.edu. Abstract.

### Undirected Graphical Models

Undirected Graphical Models January 27, 1999 1 Undirected Graphical Models Mark Alan Peot Read: Chapters 5 and 6 of [CGH]. 1.0 Goal The first model for a joint probability distribution that we will consider is the undirected graph .

### Lecture4: Circuit Problems in undirected graphs

Lecture4: Circuit Problems in undirected graphs Bakhadyr Khoussainov Computer Science Department, The University of Auckland, New Zealand bmk@cs.auckland. ac.nz 1 Euler circuits in undirected graphs Suppose we are given an undirected graph G= (V, E).

### Graph Algorithms

8 6a-Graphs-More applications of DFS Connected components of an undirected graph. Each call to DFS_VISIT (from DFS) explores an entire connected component (see ex. 22.3-11).

### Undirected Graphs

9 Some graph-processing problems Path. Is there a path between s to t? Shortest path. What is the shortest path between s and t? Longest path. What is the longest simple path between s and t?

### Fast Approximation Algorithms for Cut-based Problems in ...

Fast Approximation Algorithms for Cut-based Problems in Undirected Graphs Aleksander Mądry ⁄ Massachusetts Institute of Technology madry@mit.edu Abstract We present a general method of designing fast approximation algorithms for cut-based min

### On the Diculty of Some Shortest Path Problems

To put our lower bound in perspective, we note that both these problems (replacement paths and second shortest path) can be solved in near linear time for undirected graphs.

### TimGA: AGenetic Algorithm for Drawing Undirected Graphs

Divulgaciones Matematicas Vol. 9 No. 2(2001), pp. 155{171 TimGA: AGenetic Algorithm for Drawing Undirected Graphs TimGA: Un Algoritmo Geneticopara Dibujar Grafosno Dirigidos Timo Eloranta (@) ErkkiM akinen (em@cs.uta.fi) Department of Computer and Information Sciences, P.O. Box 607, FIN-33014 ...

### Undirected ST-Connectivity in Log-Space

Undirected ST-Connectivity in Log-Space P RELIMINARY V ERSION Omer Reingol d ∗ November9,2004 Abstract We present a deterministic , log-space algorithm that solvesst-connectivity in undirected graphs.